IMP

TM 31-210
Department of the Army Technical Manual
IMPROVISED
MUNITIONS
HANDBOOK
(Improvised Explosive Devices or IEDs)
Headquarters, Department of the Army
1969 – original publication
2007 – Thanks-to-Feinstein's Electronic Edition (v3.0)
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Table of Contents
Section 0 — Introduction
0.1 Purpose and Scope
0.2 Safety and Reliability
0.3 User Comments
Section 1 — Explosives and Propellants (including igniters)
1.1 Plastic Explosive Filler
1.2 Potassium Nitrate
1.3 Improvised Black Powder
1.4 Nitric Acid
1.5 Initiator for Dust Explosions
1.6 Fertilizer Explosive
1.7 Carbon Tet – Explosive
1.8 Fertilizer AN-Al Explosive
1.9 “Red or White Powder” Propellant
1.10 Nitric Acid/Nitrobenzene (“Hellhoffite”) Explosive
1.11 Optimized Process for Cellulose/Acid Explosives
1.12 Methyl Nitrate Dynamite
1.13 Urea Nitrate Explosive
1.14 Preparation of Copper Sulfate (Pentahydrate)
1.15 Reclamation of RDX from C4
1.16 TACC (Tetramminecopper (II) Chlorate)
1.17 HMTD
1.18 Potassium or Sodium Nitrite and Litharge (Lead Monoxide)
1.19 DDNP
1.20 Preparation of Lead Picrate
1.21 Preparation of Picric Acid from Aspirin
1.22 Double Salts
1.23 Sodium Chlorate
1.24 Mercury Fulminate
1.25 Sodium Chlorate and Sugar or Aluminum Explosive
Section 2 — Mines and Grenades
2.1 Pipe Hand Grenade
2.2 Nail Grenade
2.3 Wine Bottle Cone Charge
2.4 Grenade-Tin Can Land Mine
2.5 Mortar Scrap Mine
2.6 Coke Bottle Shaped Charge
2.7 Cylindrical Cavity Shaped Charge
2.8 Not Available
2.9 Funnel Shaped Charge
2.10 Linear Shaped Charge
Section 3 — Small Arms Weapons and Ammunition
3.1 Pipe Pistol for 9 mm Ammunition
3.2 Shotgun (12 gauge)
3.3 Shotshell Dispersion Control
3.4 Carbine (7.62 mm Standard Rifle Ammunition)
3.5 Reusable Primer
3.6 Pipe Pistol for .45 Caliber Ammunition
3.7 Match Gun
3.8 Rifle Cartridge
3.9 Pipe Pistol for .38 Caliber Ammunition
3.10 Pipe Pistol for .22 Caliber Ammunition — Long or Short Cartridge
3.11 Low Signature System
Section 4 — Mortars and Rockets
4.1 Recoilless Launcher
4.2 Shotgun Grenade Launcher
4.3 Grenade Launcher (57 mm Cardboard Container)
4.4 Fire Bottle Launcher
4.5 Grenade Launchers
4.6 60 mm Mortar Projectile Launcher
Section 5 — Incendiary Devices
5.1 Chemical Fire Bottle
5.2 Igniter from Book Matches
5.3 Mechanically Initiated Fire Bottle
5.4 Gelled Flame Fuels
5.4.1 Lye Systems
5.4.2 Lye-Alcohol Systems
5.4.3 Soap-Alcohol System
5.4.4 Egg White Systems
5.4.5 Latex Systems
5.4.6 Wax Systems
5.4.7 Animal Blood Systems
5.5 Acid Delay Incendiary
5.6 Improvised White Flare
5.7 Improvised Iron Oxide
5.8 Improvised Yellow Flare
5.9 Improvised White Smoke Munition
5.10 Improvised Black Smoke Munition
Section 6 — Fuses, Detonators & Delay Mechanisms
6.1 Electric Bulb Initiator
6.2 Fuse Igniter from Book Matches
6.3 Delay Igniter from Cigarette
6.4 Watch Delay Timer
6.5 No-Flash Fuse Igniter
6.6 Dried Seed Timer
6.7 Fuse Cords
6.7.1 Fast Burning Fuse
6.7.2 Slow Burning Fuse
6.8 Clothespin Time Delay Switch
6.9 Time Delay Grenade
6.10 Can-Liquid Time Delay
6.11 Short Term Time Delay for Grenade
6.12 Long Term Time Delay for Grenade
6.13 Detonator
Section 7 — Miscellaneous
7.1 Clothespin Switch
7.2 Mousetrap Switch
7.3 Flexible Plate Switch
7.4 Metal Ball Switch
7.5 Altimeter Switch
7.6 Pull-Loop Switch
7.7 Knife Switch
7.8 Improvised Scale
7.9 Rope Grenade Launching Technique
7.10 Bicycle Generator Power Source
7.11 Automobile Generator Power Source
7.12 Improvised Battery (Short Lasting)
7.13 Improvised Battery (2 Hour Duration)
7.14 Armor Materials
Appendix 1 — Primary High Explosives
A1.1 Mercury Fulminate
A1.2 Lead Styphnate
A1.3 Lead Azide
A1.4 DDNP
Appendix 2 — Secondary High Explosives
A2.1 TNT
A2.2 Nitrostarch
A2.3 Tetryl
A2.4 RDX
A2.5 Nitroglycerin
A2.6 Commercial Dynamite
A2.7 Military Dynamite
A2.8 Amatol
A2.9 PETN
A2.10 Blasting Gelatin
A2.11 Composition B
A2.12 Composition C4
A2.13 Ammonium Nitrate
Colophon
C.1 Version History
C.1.1 Version 1.0 (1969)
C.1.2 Version 2.0 (1970s)
C.1.3 Version 3.0 (2007 – Thanks-to-Feinstein's Electronic Edition)
C.2 Copyright Information
Frankford Arsenal
Philadelphia Pennsylvania
For Official Use Only
For further information or additional inserts, contact:
Commanding Officer
Frankford Arsenal
ATTN: SMUF A-U3100, Special Products Division
Small Caliber Engineering Directorate
Philadelphia, Pa. 19137
Additional inserts will be made available as evaluation tests are completed. Please notify the above
agency of any change of address so that you may receive them.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 0
Introduction
0.1 Purpose and Scope
In Unconventional Warfare operations it may be impossible or unwise to use conventional military
munitions as tools in the conduct of certain missions. It may be necessary instead to fabricate the
required munitions from locally available or unassuming materials. The purpose of this manual is to
increase the potential of Special Forces and guerrilla troops by describing in detail the manufacture
of munitions from seemingly innocuous locally available materials.
Manufactured, precision devices almost always will be more effective, more reliable, and easier to
use than improvised ones, but shelf items will just not be available for certain operations for security
or logistical reasons. Therefore the operator will have to rely on materials he can buy in a drug or
paint store, find in a junk pile, or scrounge from military stocks. Also, many of the ingredients and
materials used in fabricating homemade items are so commonplace or innocuous they can be carried
without arousing suspicion. The completed item itself often is more easily concealed or
camouflaged. In addition, the field expedient item can be tailored for the intended target, thereby
providing an advantage over the standard item in flexibility and versatility.
The manual contains simple explanations and illustrations to permit construction of the items by
personnel not normally familiar with making and handling munitions. These items were conceived
in-house or, obtained from other publications or personnel engaged in munitions or special warfare
work. This manual includes methods for fabricating explosives, detonators, propellants, shaped
charges, small arms, mortars, incendiaries, delays, switches, and similar items from indigenous
materials.
0.2 Safety and Reliability
Each item was evaluated both theoretically and experimentally to assure safety and reliability. A
large number of items were discarded because of inherent hazards or unreliable performance. Safety
warnings are prominently inserted in the procedures where they apply but it is emphasized that
safety is a matter of attitude. It is a proven fact that men who are alert, who think out a situation, and
who take correct precautions have fewer accidents than the careless and indifferent. It is important
that work be planned and that instructions be followed to the letter; all work should be done in a neat
and orderly manner. In the manufacture of explosives, detonators, propellants and incendiaries,
equipment must be kept clean and such energy concentrations as sparks, friction, impact, hot objects,
flame, chemical reactions, and excessive pressure should be avoided.
These items were found to be effective in most environments; however, samples should be made and
tested remotely prior to actual use to assure proper performance. Chemical items should be used as
soon as possible after preparation and kept free of moisture, dirt, and the above energy
concentrations. Special care should be taken in any attempt at substitution or use of items for
purposes other than that specified or intended.
0.3 User Comments
It is anticipated that this manual will be revised or changed from time to time. In this way it will be
possible to update present material and add new items as they become available. Users are
encouraged to submit recommended changes or comments to improve this manual. Comments
should be keyed to the specific page, paragraph, and line of the text in which changes are
recommended. Reasons should be provided for each comment to insure understanding and complete
evaluation. Comments should be forwarded directly to Commandant, United States Army, Special
Warfare School, Fort Bragg, North Carolina 28307 and Commanding Officer, United States Army,
Frankford Arsenal, SMUFA-J8000, Philadelphia, Pennsylvania 19137.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 1
Explosives and Propellants (including
igniters)
1.1 Plastic Explosive Filler
A plastic explosive filler can be made from potassium chlorate and petroleum jelly. This explosive can
be detonated with commercial #8 or any military blasting cap.
Materials Required How Used
Potassium chlorate Medicine
Manufacture of matches
Petroleum jelly (Vaseline) Medicine
Lubricant
Piece of round stick
Wide bowl or other container for mixing ingredients
Procedure
Spread potassium chlorate crystals thinly on a hard
surface. Roll the round stick over crystals to crush into a
very fine powder until it looks like face powder or wheat
flour.
1.
Place 9 parts powdered potassium chlorate and 1
part petroleum jelly in a wide bowl or similar
container. Mix ingredients with hands (knead)
until a uniform paste is obtained.
2.
Note: Store explosive in a waterproof container until ready to use.
1.2 Potassium Nitrate
Potassium nitrate (saltpeter) can be extracted from many natural sources and can be used to make nitric
acid, black powder and many pyrotechnics. The yield ranges from 0.1 to 10% by weight, depending on
the fertility of the soil.
Materials Source
Nitrate bearing earth or other material, about 3-1/2
gallons (13-1/2 liters)
Soil containing old decayed vegetable or animal
matter
Old cellars and/or farm dirt floors
Earth from old burial grounds
Decayed stone or mortar building foundations
Fine wood ashes, about 1/2 cup (1/8 liter) Totally burned whitish wood ash powder
Totally burned paper (black)
Bucket or similar container, about 5 gallons (19
liters) in volume (plastic, metal, or wood)
2 pieces of finely woven cloth, each slightly larger
than bottom of bucket
Shallow pan or dish, at least as large as bottom of
bucket
Shallow heat resistant container (ceramic, metal,
etc.)
Water – 1-3/4 gallons (6-3/4 liters)
Awl, knife, screwdriver, or other hole producing
instrument
Alcohol about 1 gallon (4 liters) (whiskey, rubbing
alcohol, etc.)
Heat source (fire, electric heater, etc.)
Paper
Tape
Note: Only the ratios of the amounts of ingredients are important. Thus, for twice as much potassium
nitrate, double quantities used.
Procedure
1. Punch holes in bottom of bucket. Spread one piece of cloth over holes inside of bucket.
Place wood ashes on cloth and spread to make a layer
about the thickness of the cloth. Place second piece of
cloth on top of ashes.
2.
3. Place dirt in bucket.
Place bucket over shallow container. Bucket
may be a ported on sticks if necessary.
4.
Boil water and pour it over earth in bucket a little at a time. Allow water to run through holes in
bucket into shallow container. Be sure water goes through all of the earth. Allow drained liquid
to cool and settle for 1 to 2 hours.
Note: Do not pour all of the water at once, since this may cause stoppage.
5.
Carefully drain off liquid into heat resistant container. Discard any sludge remaining in bottom
of the shallow container.
6.
Boil mixture over hot fire for at least 2
hours. Small grains of salt will begin to
appear in the solution. Scoop these out
as they form, using any type of
improvised strainer (paper, etc.).
7.
When liquid has boiled down to approximately half
its original volume, remove from fire and let sit.
After half an hour add an equal volume of alcohol.
When mixture is poured through paper, small white
crystals will collect on top of it.
8.
To purify the potassium nitrate, redissolve the dry crystals in the smallest possible amount of
boiled water. Remove any salt crystals that appear (step 7); pour through an improvised filter
made of several pieces of paper and evaporate or gently heat the concentrated solution to
dryness.
9.
Spread crystals on flat surface and allow to dry. The potassium nitrate crystals are now ready for
use.
10.
1.3 Improvised Black Powder
Black powder can be prepared in a simple, safe manner. It may be used as blasting or gun powder.
Materials Required
Potassium nitrate, granulated, 3 cups (3/4 liter) (section 1.2)
Wood charcoal, powdered, 2 cups (1/2 liter)
Sulfur, powdered, 1/2 cup (1/8 liter)
Alcohol, 5 pints (2-1/2 liters) (whiskey, rubbing alcohol, etc.)
Water, 3 cups (3/4 liter)
Heat source
2 Buckets – each 2 gallon (7-1/2 liters) capacity, at least one of which is heat resistant (metal, ceramic,
etc.)
Flat window screening, at least 1 foot (30 cm) square
Large wooden stick
Cloth, at least 2 feet (60 cm) square
Note: The above amounts will yield two pounds (900 grams) of black powder. However, only the ratios
of the amounts of ingredients are important. Thus, for twice as much black powder, double all quantities
used.
Procedure
1. Place alcohol in one of the buckets.
Place potassium nitrate, charcoal, and sulfur in the heat resistant bucket. Add 1 cup water and
mix thoroughly with wooden stick until all ingredients are dissolved.
2.
Add remaining water (2 cups) to mixture. Place bucket on heat source and stir until small
bubbles begin to form.
3.
Caution: Do not boil mixture. Be sure all mixture stays wet. If any is dry, as on sides of
pan, it may ignite.
Remove bucket from heat and pour mixture
into alcohol while stirring vigorously.
4.
Let alcohol mixture stand about 5 minutes. Strain mixture through cloth to obtain black powder.
Discard liquid. Wrap cloth around black powder and squeeze to remove all excess liquid.
5.
Place screening over dry bucket. Place
workable amount of damp powder on
screen and granulate by rubbing solid
through screen.
Note: If granulated particles appear to stick together and change shape, recombine entire batch
of powder and repeat steps 5 and 6.
6.
Spread granulated black powder on flat dry surface so that layer about 1/2 inch (1-1/4 cm) is
formed. Allow to dry. Use radiator, or direct sunlight. This should be dried as soon as possible,
preferably in one hour. The longer the drying period, the less effective the black powder.
7.
Caution: Remove from heat as soon as granules are dry. Black powder is now ready for use.
1.4 Nitric Acid
Nitric acid is used in the preparation of many explosives, incendiary mixtures, and acid delay timers. It
may be prepared by distilling a mixture of potassium nitrate and concentrated sulfuric acid.
Materials Required Source
Potassium nitrate (2 parts by volume)
Drug Store
Improvised (section 1.2)
Concentrated sulfuric acid (1 part by volume) Motor vehicle batteries
Industrial plants
2 bottles or ceramic jugs (narrow necks are preferable)
Pot or frying pan
Heat source (wood, coal, or charcoal)
Tape (paper, electrical, masking, etc. but not cellophane)
Paper or rags
Important: If sulfuric acid is obtained from a motor vehicle battery, concentrate it by boiling it until
white fumes appear. Do not inhale fumes.
Note: The amount of nitric acid produced is the same as the amount of potassium nitrate. Thus, for 2
tablespoonfuls of nitric acid, use 2 tablespoonfuls of potassium nitrate and 1 tablespoonful of
concentrated sulfuric acid.
Procedure
Place dry potassium nitrate in bottle or jug. Add
sulfuric acid. Do not fill bottle more than 1/4
full. Mix until paste is formed.
Caution: Sulfuric acid will burn skin and destroy clothing. If any is spilled, wash it away
with a large quantity of water. Fumes are also dangerous and should not be inhaled.
1.
Wrap paper or rags around necks of 2 bottles. Securely tape necks of bottles together. Be sure
bottles are flush against each other and that there are no air spaces.
2.
Support bottles on rocks or cans so that empty bottle is slightly lower than bottle containing
paste so that nitric acid that is formed in receiving bottle will not run into other bottle.
3.
4. Build fire in pot or frying pan.
Gently heat bottle containing mixture by moving fire in and out. As red fumes begin to appear
periodically pour cool water over empty receiving bottle. Nitric acid will begin to form in the
receiving bottle.
5.
Caution: Do not overheat or wet bottle containing mixture or it may shatter. As an added
precaution, place bottle to be heated in heat resistant container filled with sand or gravel.
Heat this outer container to produce nitric acid.
Continue the above process until no more red fumes are formed. If the nitric acid formed in the
receiving bottle is not clear (cloudy) pour it into cleaned bottle and repeat steps 2–6.
6.
Caution: Nitric acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Fumes are also dangerous and should not be inhaled.
Nitric acid should be kept away from all combustibles and should be kept in a sealed ceramic or
glass container.
1.5 Initiator for Dust Explosions
An initiator which will initiate common material to produce dust explosions can be rapidly and easily
constructed. This type of charge is ideal for the destruction of enclosed areas such as rooms or
buildings.
Materials Required
A flat can, 3 inches (8 cm) diameter and 1-1/2 inch (3-3/4 cm) high.
A 6-1/2 ounce (185 g) tuna can serves the purpose quite well.
Blasting cap
Explosive
Aluminum (may be wire, cut sheet, flattened can or powder
Large nail, 4 inches (10 cm) long
Wooden rod – 1/4 inch (6 mm) diameter
Flour, gasoline and powder or chipped aluminum
Note: Plastic explosives (Composition C4, etc.) produce better explosions than cast explosives
(Composition B, etc.).
Procedure
Using the nail, press a hole through the side of
the tuna can 3/8 to 1/2 inch (1 to 1-1/2 cm)
from the bottom. Using a rotating and lever
action, enlarge the hole until it will
accommodate the blasting cap.
1.
Place the wooden rod in the hole and
position the end of the rod at the center of
the can.
2.
Press explosive into the can, being sure to
surround the rod, until it is 3/4 inch (2 cm)
from top of the can. Carefully remove the
wooden rod.
3.
Place the aluminum metal on top of the
explosive.
4.
Just before use, insert the blasting cap into the
cavity made by the rod. The initiator is now
ready for use.
5.
Note: If it is desired
to carry the initiator
some distance,
cardboard may be
pressed on top of the
aluminum to insure
against loss of
material.
How to Use
This particular unit works quite well to initiate charges of five pounds of flour, 1/2 gallon (1-2/3 liters)
of gasoline or two pounds of flake painters aluminum. The solid materials may merely be contained in
sacks or cardboard cartons. The gasoline may be placed in plastic coated paper milk cartons, plastic or
glass bottles. The charges are placed directly on top of the initiator and the blasting cap is actuated
electrically or by fuse depending on the type of cap employed. This will destroy a 2,000 cubic feet
enclosure (building 10 x 20 x 10 feet).
Note: For larger enclosures, use proportionately larger initiators and charges.
1.6 Fertilizer Explosive
An explosive munition can be made from fertilizer grade ammonium nitrate and either fuel oil or a
mixture of equal parts of motor oil and gasoline. When properly prepared, this explosive munition can
be detonated with a blasting cap.
Materials Required
Ammonium nitrate (not less than 32% nitrogen)
Fuel oil or gasoline and motor oil 1:1 ratio)
Two flat boards. (At least one of these should be comfortably held in the hand, i.e. 2 x 4 and 36 x 36.)
Bucket or other container for mixing ingredients
Iron or steel pipe or bottle, tin can or heavy-walled cardboard tube
Blasting cap
Wooden rod – 1/4 inch diameter
Spoon or similar measuring container
Procedure
Spread a handful of the ammonium nitrate on the large flat
board and rub vigorously with the other board until the large
particles are crushed into a very fine powder that looks like
flour (approximately 10 minutes).
Note: Proceed with step 2 as soon as possible since the powder may take moisture from the air
and become spoiled.
1.
Mix one measure (cup, tablespoon, etc.) of fuel oil with 16
measures of the finely ground ammonium nitrate in a dry
bucket or other suitable container and stir with the wooden
rod. If fuel oil is not available, use one half measure of
gasoline and one half measure of motor oil. Store in a
waterproof container until ready to use.
2.
Spoon this mixture into an iron or steel pipe which has an end cap threaded on one end. If a pipe
is not available, you may use a dry tin can, a glass jar or a heavy-walled cardboard tube.
3.
Note: Take care not to tamp or shake the mixture in the pipe. If mixture becomes tightly packed,
one cap will not be sufficient to initiate the explosive.
Insert blasting cap just beneath the surface of the
explosive mix.
4.
Note: Confining the open end of the container will add to the effectiveness of the explosive.
1.7 Carbon Tet – Explosive
A moist explosive mixture can be made from fine aluminum powder combined with carbon
tetrachloride or tetrachloroethylene. This explosive can be detonated with a blasting cap.
Materials Required Source
Fine aluminum bronzing powder Paint Store
Carbon tetrachloride, or
tetrachloroethylene
Pharmacy, or fire extinguisher fluid
Dry cleaners, Pharmacy
Stirring rod (wood)
Mixing container (bowl, bucket, etc.)
Measuring container (cup, tablespoon, etc.)
Storage container (jar, can, etc.)
Blasting cap
Pipe, can or jar
Procedure
Measure out two parts aluminum powder to one part
carbon tetrachloride or tetrachloroethylene liquid into
mixing container, adding liquid to powder while stirring
with the wooden rod.
1.
Stir until the mixture becomes the consistency of honey
syrup.
Caution: Fumes from the liquid are dangerous and
should not be inhaled.
2.
Store explosive in a jar or similar water proof container until ready to use. The
liquid in the mixture evaporates quickly when not confined.
3.
Note: Mixture will detonate in this manner for a period of 72 hours.
How to Use
Pour this mixture into an iron or steel pipe which
has an end cap threaded on one end. If a pipe is
not available, you may use a dry tin can or a
glass jar.
1.
Insert blasting cap just beneath the surface of the
explosive mix.
2.
Note: Confining the open end of the container will add to the effectiveness of the explosive.
1.8 Fertilizer AN-Al Explosive
A dry explosive mixture can be made from ammonium nitrate fertilizer combined with fine aluminum
powder. This explosive can be detonated with a blasting cap.
Materials Required Source
Ammonium nitrate fertilizer (not less than 32% nitrogen) Farm or Feed Store
Fine aluminum bronzing powder Paint Store
Measuring container (cup, tablespoon, etc.)
Mixing container (wide bowl, can, etc.)
Two flat boards (one should be comfortably held in hand and one very large, i.e. 2
x 4 and 36 x 36 inches)
Storage container (jar, can, etc.)
Blasting cap
Wooden rod – 1/4 inch diameter
Pipe, can or jar
Procedure
Method I – To Obtain a Low Velocity Explosive
Use measuring container to measure four parts fertilizer to one part aluminum powder
and pour into the mixing container. (Example: 4 cups of fertilizer to 1 cup aluminum
powder.)
a.
b. Mix ingredients well with the wooden rod.
1.
Method II – To Obtain a Much Higher Velocity Explosive
Spread a handful at a time of the fertilizer on
the large flat board and rub vigorously with the
other board until the large particles are crushed
into a very fine powder that looks like flour
(approximately 10 minutes per handful).
Note: Proceed with step b below as soon as possible since the powder may take moisture
from the air and become spoiled.
a.
b. Follow steps a and b of Method I.
2.
Store the explosive mixture in a waterproof container, such as glass jar, steel
pipe, etc., until ready to use.
3.
How to Use
Follow steps 1 and 2 of How to Use in section 1.7.
1.9 “Red or White Powder” Propellant
“Red or White Powder” Propellant may be prepared in a simple, safe manner. The formulation
described below will result in approximately 2-1/2 pounds of powder. This is a small arms propellant
and should only be used in weapons with 1/2 inch inside diameter or less, such as the Match Gun or the
7.62 Carbine, but not pistols.
Materials Required
Heat source (kitchen stove or open fire)
2 gallon metal bucket
Measuring cup (8 ounces or 240 milliliters)
Wooden spoon or rubber spatula
Metal sheet or aluminum foil (at least 18 inches square)
Flat window screen (at least 1 foot square)
Potassium nitrate (granulated) 2-1/3 cups (560 milliliters)
White sugar (granulated) 2 cups (480 milliliters)
Powdered ferric oxide (rust) 1/8 cup (30 milliliters) (if available)
Clear water, 3-1/2 cups (840 milliliters)
Procedure
Place the sugar, potassium nitrate, and water in the
bucket. Heat with a low flame, stirring occasionally
until the sugar and potassium nitrate dissolve.
1.
If available, add the ferric oxide (rust) to the
solution. Increase the flame under the
mixture until it boils gently.
Note: The mixture will retain the rust
coloration.
2.
Stir and scrape the bucket sides occasionally until the mixture is reduced to one quarter of its
original volume, then stir continuously.
3.
As the water evaporates, the mixture will become thicker until it reaches the consistency of
cooked breakfast cereal or homemade fudge. At this stage of thickness, remove the bucket from
the heat source, and spread the mass on the metal sheet.
4.
While the material cools, score it with the spoon or spatula in crisscrossed furrows about 1 inch
apart.
5.
Allow the material to air dry, preferably in the sun. As it dries, rescore it occasionally (about
every 20 minutes) to aid drying.
6.
When the material has dried to a point where it is moist and soft but not sticky to the touch,
place a small spoonful on the screen. Rub the material back and forth against the screen mesh
with spoon or other flat object until the material is granulated into small worm-like particles.
7.
8. After granulation, return the material to the sun to dry completely.
1.10 Nitric Acid/Nitrobenzene (“Hellhoffite”)
Explosive
An explosive munition can be made from mononitrobenzene and nitric acid. It is a simple explosive to
prepare. Just pour the mononitrobenzene into the acid and stir.
Materials Required Source
Nitric acid Field grade or 90% concentrated (specific gravity of
1.48)
Mononitrobenzene (also known as nitrobenzene)
Drug store (oil of mirbane)
Chemical supply house
Industries (used as solvent)
Acid resistant measuring containers Glass, clay, etc.
Acid resistant mixing rod
Blasting cap
Wax
Steel pipe, end cap and tape
Bottle or jar
Note: Prepare mixture just before use.
Procedure
Add 1 volume (cup, quart, etc.) mononitrobenzene to 2
volumes nitric acid in bottle or jar.
1.
2. Mix ingredients well by stirring with acid resistant rod.
Caution: Nitric acid will burn skin and destroy clothing. If any is spilled, wash off immediately
with large amount of water. Nitrobenzene is toxic; do not inhale fumes.
How to Use
1. Wax blasting cap, pipe and end cap.
2. Thread end cap onto pipe.
3. Pour mixture into pipe.
Insert and tape blasting cap just beneath surface
of mixture.
4.
Note: Combining the open end of the pipe will add to the effectiveness of the explosive.
1.11 Optimized Process for Cellulose/Acid
Explosives
An acid type explosive can be made from nitric acid and white paper or cotton cloth. This explosive can
be detonated with a commercial #8 or any military blasting cap.
Materials Required Source
Nitric Acid
Industrial metal processors, 90% concentrated (specific
gravity of 1.48)
Field grade (section 1.4)
White unprinted, unsized paper Paper towels, napkins
Clean white cotton cloth Clothing, sheets, etc.
Acid resistant container Wax coated pipe or can, ceramic pipe, glass jar, etc.
Heavy-walled glass containers
Aluminum foil or acid resistant material Food stores
Protective gloves
Blasting cap
Wax
Procedure
1. Put on gloves.
Spread out a layer of paper or cloth on aluminum foil and sprinkle with nitric acid until
thoroughly soaked. If aluminum foil is unavailable, use an acid resistant material (glass, ceramic
or wood).
Caution: Acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Do not inhale fumes.
2.
Place another layer of paper or cloth on top of the acid-soaked sheet and repeat step 2 above.
Repeat as often as necessary.
3.
Roll up the aluminum foil containing the acid-soaked
sheets and insert the roll into the acid resistant container.
Note: If glass, ceramic or wooden tray is used, pick up sheets with two wooden sticks and load
into container.
4.
5. Wax blasting cap.
Insert the blasting cap in the center of the rolled sheets.
Allow 5 minutes before detonating the explosive.
6.
1.12 Methyl Nitrate Dynamite
A moist explosive mixture can be made from sulfuric acid, nitric acid and methyl alcohol. This
explosive can be detonated with a blasting cap.
Materials Required Source
Sulfuric acid Clear battery acid boiled until white fumes appear
Nitric acid
Field grade nitric acid (section 1.4) or 90% concentration
(1.48 specific gravity)
Methyl alcohol
Methanol
Wood alcohol (not denatured alcohol)
Antifreeze (nonpermanent)
Eyedropper or syringe with glass tube
Large diameter glass (2 quart) jar
Narrow glass jars (1 quart)
Absorbent (fine sawdust, shredded paper,
shredded cloth)
Cup
Pan (3 to 5 gallon)
Teaspoon
Wooden stick
Steel pipe with end cap
Blasting cap
Water
Tray
Procedure
Add 24 teaspoons of sulfuric acid to 16-1/2 teaspoons of
nitric acid in the 2 quart jar.
Caution: Acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Do not inhale fumes.
1.
2. Place the jar in the pan (3 to 5 gallon) filled with cold water or a stream and allow acid to cool.
Rapidly swirl the jar to create a whirlpool in the
liquid (without splashing) while keeping the
bottom portion of the jar in the water.
3.
While continually swirling, add to mixture, 1/2
teaspoon at a time, 13-1/2 teaspoons of methyl
alcohol, allowing mixture to cool at least one
minute between additions.
Caution: If there is a sudden increase in
the amount of fumes produced or if the
solution suddenly turns much darker or
begins to froth, dump solution in the water
within 10 seconds. This will halt the
reaction and prevent an accident.
4.
5. After the final addition of methyl alcohol, swirl for another 30 to 45 seconds.
Carefully pour the solution into one of the narrow glass jars. Allow jar to stand in water for
approximately 5 minutes until two layers separate.
6.
With an eyedropper or syringe, remove top layer and carefully
put into another narrow glass jar. This liquid is the explosive.
Caution: Explosive is shock sensitive.
7.
Add an equal quantity of water to the explosive and swirl.
Allow mixture to separate again as in step 6. The explosive is
now the bottom layer.
8.
9. Carefully remove the top layer with the eyedropper or syringe and discard.
10. Place one firmly packed cup of absorbent in the tray.
While stirring with the wooden stick, slowly add explosive until the mass is very damp but not
wet enough to drip. Explosive is ready to use.
11.
Note: If mixture becomes too wet, add more absorbent.
If storage of explosive is required, store in a sealed container to prevent evaporation.
Caution: Do not handle liquid explosive or allow to contact skin. If this happens, flush away
immediately with large quantity of water. Keep grit, sand or dirt out of mixture.
How to Use
Spoon this mixture into an iron or steel pipe which has an end cap threaded on one end. If a pipe
is not available, you may use a dry tin can or a glass jar.
1.
Insert blasting cap just beneath the
surface of the explosive mix.
2.
Note: Confining the open end of the container will add to the effectiveness of the explosive.
1.13 Urea Nitrate Explosive
Urea nitrate can be used as an explosive munition. It is easy to prepare from nitric acid and urine. It can
be detonated with a blasting cap.
Materials Required Source
Nitric acid, 90% concentration (1.48 specific gravity)
Field grade (section 1.4) or industrial metal
processors
Urine Animals (including humans)
2 one gallon heat and acid-resistant containers (glass,
clay, etc.)
Filtering material Paper towel or finely textured cotton cloth
(shirt, sheet, etc.)
Aluminum powder (optional or if available) Paint stores
Heat source
Measuring containers (cup and spoon)
Water
Tape
Blasting cap
Steel pipe and end cap(s)
Note: Prepare mixture just before use.
Procedure
Boil a large quantity of urine (10 cups) to
approximately 1/10 its volume (1 cup) in one of the
containers over the heat source.
1.
2. Filter the urine into the other container through the filtering material to remove impurities.
Slowly add 1/3 cup of nitric acid to the
filtered urine, and let mixture stand for 1
hour.
Caution: Acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Do not inhale fumes.
3.
Filter mixture as in step 2. Urea nitrate
crystals will collect on the paper.
4.
5. Wash the urea nitrate by pouring water over it.
Remove urea nitrate crystals from the filtering material and allow to dry thoroughly
(approximately 16 hours).
6.
Note: The drying time can be reduced to two hours if a hot (not boiling) water bath is used. See step 5
of section 1.15.
How to Use
Spoon the urea nitrate crystals into an iron or steel pipe which has an end cap threaded on one
end.
1.
Insert blasting cap just beneath the surface of
the urea nitrate crystals.
2.
Notes: This explosive can be made more effective by mixing with aluminum powder (can be obtained
in paint stores) in the ratio of 4 to 1. For example, mix 1 cup of aluminum powder with 4 cups of urea
nitrate.
Confining the open end of the container will add to the effectiveness of the explosive.
1.14 Preparation of Copper Sulfate (Pentahydrate)
Copper sulfate is a required material for the preparation of TACC (section 1.16).
Materials Required
Pieces of copper or copper wire
Dilute sulfuric acid (battery acid)
Potassium nitrate (section 1.2) or nitric acid, 90% concentration (1.48 specific gravity) (section 1.4)
Alcohol
Water
Two 1 pint jars or glasses, heat resistant
Paper towels
Pan
Wooden rod or stick
Improvised scale (section 7.8)
Cup
Container
Heat source
Teaspoon
Procedure
Place 10 grams of copper pieces into one of the pint
jars. Add 1 cup (240 milliliters) of dilute sulfuric acid to
the copper.
1.
Add 12 grams of potassium nitrate or 1-1/2
teaspoons of nitric acid to the mixture.
Note: Nitric acid gives a product of greater purity.
2.
Heat the mixture in a pan of simmering hot water
bath until the bubbling has ceased (approximately
2 hours). The mixture will turn to a blue color.
Caution: The above procedure will cause strong toxic fumes. Perform step 3 in an open,
well ventilated area.
3.
4. Pour the hot blue solution, but not the copper, into the other pint jar. Allow solution to cool at
room temperature. Crystals will form at the bottom of the jar. Discard the unreacted copper
pieces in the first jar.
Carefully pour away the liquid from the crystals. Crush
crystals into a powder with wooden rod or stick.
5.
Add 1/2 cup (120 milliliters) of alcohol to the
powder while stirring.
6.
Filter the solution through a paper towel
into a container to collect the crystals.
Wash the crystals left on the paper towel
three times, using 1/2 cup (120 milliliters)
portions of alcohol each time.
7.
8. Air dry the copper sulfate crystals for 2 hours.
Note: Drying time can be reduced to 1/2 hour by use of hot, not boiling, water bath (see step 3).
1.15 Reclamation of RDX from C4
RDX can be obtained from C4 explosive with the use of gasoline. It can be used as a booster explosive
for detonators (section 6.13) or as a high explosive charge.
Materials Required
Gasoline
C4 explosive
2 pint glass jars, wide mouth
Paper towels
Stirring rod (glass or wood)
Water
Optional (RDX can be air dried instead)
Ceramic or glass dish
Pan
Heat Source
Teaspoon
Cup
Tape
Procedure
Place 1-1/2 teaspoons (15 grams) of C4 explosive in
one of the pint jars. Add 1 cup (240 milliliters) of
gasoline.
Note: These quantities can be in creased to obtain
more RDX. For example, use 2 gallons of gasoline
per 1 cup of C4.
1.
Knead and stir the C4 with the rod until the C4 has broken down into
small particles. Allow mixture to stand for 1/2 hour.
2.
3. Stir the mixture again until a fine white powder remains on the bottom of the jar.
Filter the mixture through a paper towel into the other
glass jar. Wash the particles collected on the paper towel
with 1/2 cup (120 milliliters) of gasoline. Discard the
waste liquid.
4.
Place the RDX particles in a glass or
ceramic dish. Set the dish in a pan of hot
water, not boiling, and dry for a period of
1 hour.
5.
Note: The RDX particles may be air dried for a period of 2 to 3 hours.
1.16 TACC (Tetramminecopper (II) Chlorate)
Tetramminecopper (II) chlorate is a primary explosive that can be made from sodium chlorate, copper
sulfate and ammonia. This explosive is to be used with a booster explosive such as picric acid (section
1.21) or RDX (section 1.15) in the fabrication of detonators (section 6.13).
Materials Required Source
Sodium chlorate
Section 1.23
Medicine
Weed killer, hardware store
Copper sulfate
Section 1.14
Insecticide, hardware store
Water purifying agent
Ammonia hydroxide Household ammonia
Smelling salts
Alcohol, 95% pure
Wax, clay, pitch, etc.
Water
Bottle, narrow mouth (wine or coke)
Bottles , wide mouth (mason jars)
Tubing (rubber, copper, steel) to fit narrow mouth bottle
Teaspoon
Improvised scale Section 7.8
Heat source
Paper towel
Pan
Tape
Cup
Procedure
Measure 1/3 teaspoon (2-1/2 grams) of sodium
chlorate into a wide mouth bottle. Add 10
teaspoons of alcohol.
1.
Place the wide mouth bottle in a pan of hot
water. Add 1 teaspoon (4 grams) of copper
sulfate to the mixture. Heat for a period of
30 minutes just under the boiling point and
stir occasionally.
2.
Caution: Keep solution away from flame.
Note: Keep volume of solution constant by adding additional alcohol approximately every 10
minutes.
Remove solution from pan and allow to cool. Color of
solution will change from blue to light green. Filter solution
through a paper towel into another wide mouth bottle. Store
solution until ready for step 6.
3.
Add 1 cup (250 milliliters) of ammonia to the narrow mouth
bottle.
4.
Place tubing into the neck of bottle so that it extends about 1-1/2 inches (4 cm) inside bottle.
Seal tubing to bottle with wax, clay, pitch, etc.
5.
Place free end of tubing into the chlorate-alcohol-sulfate solution (step 3). Heat bottle containing
ammonia in a pan of hot water, but not boiling, for approximately 10 minutes.
6.
Bubble ammonia gas through the chlorate-alcohol-sulfate solution, approximately 10 minutes,
until the color changes from light green to dark blue. Continue bubbling for another 10 minutes.
Caution: At this point the solution is a primary explosive. Keep away from flame.
7.
Remove the solution from the pan and reduce the volume to about 1/3 of its original volume by
evaporating in the open air or in a stream of air.
Note: Pour solution into a flat container for faster evaporation.
8.
Filter the solution through a paper towel into a
wide mouth bottle to collect crystals. Wash
crystals with 1 teaspoon of alcohol. Tape and
set aside to dry (approximately 16 hours).
9.
Caution: Explosive is shock and flame sensitive. Store in a capped container.
Note: The drying time can be reduced to 2 hours if a hot (not boiling) water bath is used.
1.17 HMTD
HMTD is a primary explosive that can be made from hexamethylenetetramine, hydrogen peroxide and
citric acid. This explosive is to be used with a booster explosive such as picric acid (section 1.21) or
RDX (section 1.15) in the fabrication of detonators (section 6.13).
Materials Required Source
Hexamethylenetetramine Drugstores under names of urotropine, hexamin, methenamine, etc.
Army heat tablets
Hydrogen peroxide 6% hair bleach (or stronger if possible)
Citric acid Drug stores or food stores (“Sour Salt”)
Containers, bottles or glasses
Paper towels
Teaspoon
Pan
Water
Tape
Procedure
Measure 9 teaspoons of hydrogen peroxide into a
container.
1.
In 3 portions, dissolve 2-1/2 teaspoons of crushed
hexamethylenetetramine in the peroxide.
2.
Keep the solution cool for 30 minutes by
placing container in a pan of cold water.
3.
In 5 portions, dissolve 4-1/2 teaspoons of crushed citric acid in the
hexamethylenetetramine-peroxide solution.
4.
Permit solution to stand at room temperature until solid
particles form at the bottom of container.
Note: Complete precipitation will take place in 8 to 24 hours.
5.
Caution: At this point the mixture is a primary explosive. Keep away from flame.
Filter the mixture through a paper towel into a container to
collect the solid particles.
6.
Wash the solid particles collected in the paper towel with 6 teaspoons of water by pouring the
water over them. Discard the liquid in the container.
7.
8. Place these explosive particles in a container and allow to dry.
Caution: Handle dry explosive with great care. Do not scrape or handle it roughly. Keep away
from sparks or open flames. Store in cool, dry place.
1.18 Potassium or Sodium Nitrite and Litharge
(Lead Monoxide)
Potassium or sodium nitrite is needed to prepare DDNP (section 1.19), and litharge is required for the
preparation of lead picrate (section 1.20).
Materials Required Source
Lead metal (small pieces or chips) Plumbing supply store
Potassium (or sodium) nitrate Field grade (section 1.2) or Drug Store
Methyl (wood) alcohol
Iron pipe with end cap
Iron rod or screwdriver
Paper towels
2 glass jars, wide mouth
Metal pan
Heat source (hot coals or blow torch)
Improvised scale (section 7.8)
Cup
Water
Pan
Procedure
Mix 12 grams of lead and 4 grams of potassium or
sodium nitrate in a jar. Place the mixture in the iron pipe.
1.
Heat iron pipe in a bed of hot coals or with blow torch for
30 minutes to 1 hour. (Mixture will change to a yellow
color.)
2.
Remove the iron pipe from the heat source and
allow to cool. Chip out the yellow material
formed in the iron pipe and place the chips in
the glass jar.
3.
Add 1/2 cup (120 milliliters) of methyl alcohol to
the chips.
4.
Heat the glass jar containing the mixture in a
hot water bath for approximately 2 minutes
(heat until there is a noticeable reaction
between chips and alcohol; solution will turn
darker).
5.
Filter the mixture through a paper towel into the other
glass jar. The material left on the paper towel is lead
monoxide.
6.
7. Remove the lead monoxide and wash it twice through a paper towel using 1/2 cup (120
milliliters) of hot water each time. Air dry before using.
Place the jar with the liquid (from step 6) in a hot water bath (as in step 5) and heat until the
alcohol has evaporated. The powder remaining in the jar after evaporation is potassium or
sodium nitrite.
8.
Note: Nitrite has a strong tendency to absorb water from the atmosphere and should be stored in a
closed container.
1.19 DDNP
DDNP is a primary explosive used in the fabrication of detonators (section 6.13). It is to be used with a
booster explosive such as picric acid (section 1.21) or RDX (section 1.15).
Materials Required Source
Picric acid Section 1.21
Flowers of sulfur
Lye (sodium hydroxide)
Sulfuric acid, diluted Motor vehicle batteries
Potassium or sodium nitrite Section 1.18
Water
2 glass cups, heat resistant, (Pyrex)
Stirring rod (glass or wood)
Improvised scale Section 7.8
Paper towels
Teaspoon
Tablespoon
Eyedropper
Heat source
Containers
Tape
Procedure
In one of the glass cups, mix 1/2 gram of lye with 2
tablespoons (30 milliliters) of warm water.
1.
Dissolve 1 teaspoon (3 grams) of picric acid in the
water-lye solution. Store until ready for step 5.
2.
Place 1/4 teaspoon (1 milliliter) of water in the other glass cup. Add 1/2 teaspoon (2-1/2 grams)
of sulfur and 1/3 teaspoon (2-1/2 grams) of lye to the water.
3.
Boil solution over heat source until color turns dark red.
Remove and allow solution to cool.
4.
In three portions, add this sulfur-lye solution to
the picric acid-lye solution (step 2); stir while
pouring. Allow mixture to cool.
5.
Filter the mixture through a paper towel into a container.
Small red particles will collect on the paper. Discard the
liquid in the container.
6.
Dissolve the red particles in 1/4 cup (60 milliliters) of
boiling water.
7.
Remove and filter the mixture through a paper towel as in step 6. Discard the particles left on the
paper.
8.
Using an eyedropper, slowly add the sulfuric acid
to the filtered solution until it turns orange-brown.
9.
Add 1/2 teaspoon (2-1/2 grams) more of sulfuric acid to the solution. Allow the solution to cool
to room temperature.
10.
In a separate container, dissolve 1/4 teaspoon (1.8 grams) of potassium or sodium nitrite in 1/3
cup (80 milliliters) of water.
11.
Add this solution in one portion, while stirring, to the orange-solution. Allow the mixture to
stand for 10 minutes. The mixture will turn light brown.
Caution: At this point the mixture is a primary explosive. Keep away from flame.
12.
Filter the mixture through a paper towel.
Wash the particles left on the paper with 4
teaspoons (20 milliliters) of water.
13.
14. Allow the particles to dry (approximately 16 hours).
Caution: Explosive is shock and flame sensitive. Store explosive in a capped container.
Note: The drying time can be reduced to 2 hours if a hot (not boiling) water bath is used. See section
1.16.
1.20 Preparation of Lead Picrate
Lead picrate is used as a primary explosive in the fabrication of detonators (section 6.13). It is to be
used with a booster explosive such as picric acid (section 1.21) or RDX (section 1.15).
Materials Required Source
Litharge (lead monoxide) Section 1.18 or plumbing supplies
Picric Acid Section 1.21
Wood alcohol (methanol) Paint removers; some antifreezes
Wooden or plastic rod
Dish or saucer (china or glass)
Teaspoon
Improvised Scale Section 7.8
Containers
Flat pan
Heat source (optional)
Water (optional)
Procedure
1. Weigh 2 grams each of picric acid and lead monoxide. Place each in a separate container.
Place 2 teaspoons (10 milliliters) of the
alcohol in a dish. Add the picric acid to the
alcohol and stir with the wooden or plastic
rod.
2.
Add the lead monoxide to the mixture while stirring.
Caution: At this point the solution is a primary explosive. Keep away from flame.
3.
Continue stirring the mixture until the alcohol has evaporated. The mixture will suddenly
thicken.
4.
Stir mixture occasionally (to stop lumps from
forming) until a powder is formed. A few
lumps will remain.
Caution: Be very careful of dry material forming on the inside of the container.
5.
Spread this powdered mixture, the lead
picrate, in a flat pan to air dry.
6.
Note: If possible, dry the mixture in a hot, not boiling,
water bath for a period of 2 hours.
1.21 Preparation of Picric Acid from Aspirin
Picric acid can be used as a booster explosive in detonators (section 6.13), a high explosive charge, or as
an intermediate to preparing lead picrate (section 1.20) or DDNP (section 1.19).
Materials Required
Aspirin tablets (5 grains or 325 mg per tablet)
Alcohol, 95% pure
Sulfuric acid, concentrated, (battery acid – boil until white fumes appear)
Potassium nitrate (section 1.2)
Water
Paper towels
Canning jar, 1 pint
Rod (glass or wood)
Glass containers
Ceramic or glass dish
Cup
Teaspoon
Tablespoon
Pan
Heat Source
Tape
Procedure
Crush 20 aspirin tablets in a glass container.
Add 1 teaspoon of water and work into a paste.
1.
Add approximately 1/3 to 1/2 cup of alcohol
(100 milliliters) to the aspirin paste; stir while
pouring.
2.
Filter the alcohol-aspirin solution through a paper towel into
another glass container. Discard the solid left on the paper towel.
3.
4. Pour the filtered solution into a ceramic or glass dish.
Evaporate the alcohol and water from the solution
by placing the dish into a pan of hot water. White
powder will remain in the dish after evaporation.
Note: Water in pan should be at hot bath temperature, not boiling, approximately 160° to 180°F.
It should not burn the hands.
5.
Pour 1/3 cup (80 milliliters) of concentrated sulfuric acid
into a canning jar. Add the white powder to the sulfuric
acid.
6.
Heat canning jar of sulfuric acid in a pan of
simmering hot water bath for 15 minutes; then
remove jar from the bath. Solution will turn to a
yellow-orange color.
7.
Add 3 level teaspoons (15 grams) of potassium nitrate
in three portions to the yellow-orange solution; stir
vigorously during additions. Solution will turn red,
and then back to a yellow-orange color.
8.
9. Allow the solution to cool to ambient or room temperature while stirring occasionally.
Slowly pour the solution, while stirring,
into 1-1/4 cup (300 milliliters) of cold
water and allow to cool.
10.
Filter the solution through a paper towel into a glass container. Light yellow particles will collect
on the paper towel.
11.
Wash the light yellow particles with 2
tablespoons (25 milliliters) of water.
Discard the waste liquid in the container.
12.
13. Place particles in ceramic dish and set in a hot water bath, as in step 5, for 2 hours.
1.22 Double Salts
Double salts is used as a primary explosive in the fabrication of detonators (section 6.13). It can be
made in the field from silver (coins), nitric acid, calcium carbide, and water.
Materials Required
Nitric acid (90% concentration) (section 1.4)
Silver metal (silver coin, about 5/8 inch diameter)
Calcium carbide (acetylene or calcium carbide lamps)
Rubber and glass tubing (approximately 1/4 inch inside diameter)
Paper towels
Heat-resistant bottles or ceramic jugs, 1 to 2 quart capacity, and one cork to fit. (Punch hole in cork to
fit tubing.)
Teaspoon (aluminum, stainless steel or wax-coated) or equivalent measure
Glass container
Heat source
Long narrow jar (olive jar)
Tape
Water
Alcohol
Procedure
Dilute 2-1/4 teaspoons of nitric acid with 1-1/2
teaspoons of water in a glass container by adding
the acid to the water.
1.
Dissolve a silver coin (a silver dime) in the diluted nitric acid. The solution will turn to a green
color.
Note: It may be necessary to warm the container to completely dissolve the silver coin.
Caution: Acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Do not inhale fumes.
2.
Pour solution into a long narrow
(olive) jar and place it in a bottle of
hot water. Crystals will form in the
solution; heat until crystals dissolve.
3.
While still heating and after crystals have dissolved, place 10 teaspoons of calcium carbide in
another glass bottle and add 1 teaspoon of water. After the reaction has started add another
teaspoon of water. Then set up as shown.
4.
Bubble acetylene through the solution for 5 to 8 minutes. A brown vapor will be given off and
white flakes will appear in the silver solution.
5.
Remove the silver solution from the
heat source and allow it to cool. Filter
the solution through a paper towel
into a glass container. Green crystals
will collect on the paper.
6.
Wash the solids collected on the paper towel with 12
teaspoons of alcohol. The solid material will turn
white while the solvent in the container will have a
green color.
7.
8. Place the white solid material on a clean paper towel to air dry.
Caution: Handle dry explosive with great care. Do not scrape or handle it roughly. Keep away
from sparks or open flames. Store in cool, dry place.
1.23 Sodium Chlorate
Sodium chlorate is a strong oxidizer used in the manufacture of explosives. It can be used in place of
potassium chlorate (section 1.1).
Materials Required Source
2 carbon or lead rods (1 inch diameter x 5 inches long)
Dry cell batteries (2-1/2 inches
diameter x 7 inches long) or
plumbing supply store
Salt or, ocean water Grocery store or ocean
Sulfuric acid, diluted Motor vehicle batteries
Motor vehicle
Water
2 wires, 16 gauge (3/64 inch diameter approximately), 6 feet
long, insulated
Gasoline
1 gallon glass jar, wide mouth (5 inches diameter x 6 inches
high approximately)
Sticks
String
Teaspoon
Trays
Cup
Heavy cloth
Knife
Large flat pan or tray
Procedure
Mix 1/2 cup of salt into the one gallon glass jar
with 3 liters (3 quarts) of water.
1.
Add 2 teaspoons of battery
acid to the solution and stir
vigorously for 5 minutes.
2.
Strip about 4 inches of insulation from both ends of the 2
wires.
3.
With knife and sticks shape 2 strips of
wood 1 x 1/8 x 1-1/2. Tie the wood strips
to the lead or carbon rods so that they are
1-1/2 inches apart.
4.
5. Connect the rods to the battery in a motor vehicle with the insulated wire.
Submerge 4-1/2 inches of the rods into the
salt water solution.
6.
With gear in neutral position, start the vehicle engine. Depress the accelerator approximately 1/5
of its full travel.
7.
8. Run the engine with the accelerator in this position for 2 hours; then, shut it down 2 hours.
Repeat this cycle for a total of 64 hours while maintaining the level of the acid-salt water
solution in the glass jar.
Caution: This arrangement employs voltages which may be dangerous to personnel. Do
not touch bare wire leads while engine is running.
9.
Shut off the engine. Remove the rods from the glass jar and disconnect wire leads from the
battery.
10.
Filter the solution through
the heavy cloth into a flat
pan or tray, leaving the
sediment at the bottom of
the glass jar.
11.
Allow the water in the filtered solution to evaporate at room temperature (approximately 16
hours). The residue is approximately 60% or more sodium chlorate which is pure enough to be
used as an explosive ingredient.
12.
1.24 Mercury Fulminate
Mercury fulminate is used as a primary explosive in the fabrication of detonators (section 6.13). It is to
be used with a booster explosive such as picric acid (section 1.21) or RDX (section 1.15).
Materials Required Source
Nitric Acid, 90% concentration (1.48 specific
gravity)
Field grade (section 1.4) or industrial metal
processors
Mercury Thermometers, mercury switches, old radio tubes
Ethyl (grain) alcohol (90%)
Filtering material Paper towels
Teaspoon measure (1/4, 1/2, and 1 teaspoon
capacity) – aluminum, stainless steel or
wax-coated
Heat source
Clean wooden stick
Clean water
Glass containers
Tape
Syringe
Procedure
Dilute 5 teaspoons of nitric acid with 2-1/2 teaspoons of clean water in a glass container by
adding the acid to the water.
1.
Dissolve 1/8 teaspoon of mercury in the
diluted nitric acid. This will yield dark red
fumes.
Note: It may be necessary to add water, one drop at a time, to the mercury-acid solution in order
to start reaction.
Caution: Acid will burn skin and destroy clothing. If any is spilled, wash it away with a
large quantity of water. Do not inhale fumes.
2.
Warm 10 teaspoons of the alcohol in a container
until the alcohol feels warm to the inside of the
wrist.
3.
Pour the metal-acid solution into the warm
alcohol. Reaction should start in less than 5
minutes. Dense white fumes will be given off
during reaction. As time lapses, the fumes will
become less dense. Allow 10 to 15 minutes to
complete reaction. Fulminate will settle to bottom.
Caution: This reaction generates large quantities of toxic, flammable fumes. The process
must be conducted outdoors or in a well ventilated area, away from sparks or open flames.
Do not inhale fumes.
4.
Filter the solution through a piper towel into a
container. Crystals may stick to the side of the
container. If so, tilt and squirt water down the
sides of the container until all the material collects
on the filter paper.
5.
Wash the crystals with 6 teaspoons of ethyl
alcohol.
6.
7. Allow these mercury fulminate crystals to air dry.
Caution: Handle dry explosive with great care. Do not scrape or handle it roughly. Keep away
from sparks or open flames. Store in cool, dry place.
1.25 Sodium Chlorate and Sugar or Aluminum
Explosive
An explosive munition can be made from sodium chlorate combined with granular sugar, or aluminum
powder. This explosive can be detonated with a commercial #8 or a Military J-2 blasting cap.
Materials Required Source
Sodium chlorate Section 1.23
Granular sugar Food store
Aluminum powder Paint store
Wooden rod or stick
Bottle or jar
Blasting cap
Steel pipe (threaded at one end), end cap and tape
Wax
Measuring container (cup, quart, etc.)
Procedure
Add three volumes (cups, quarts, etc.) sodium
chlorate to one volume aluminum, or two
granular sugar, in bottle or jar.
1.
2. Mix ingredients well by stirring with the wooden rod or stick.
How to Use
1. Wax blasting cap, pipe and end cap.
2. Thread end cap onto pipe.
3. Pour mixture into pipe.
Insert and tape blasting cap just beneath
surface of mixture.
4.
Note: Confining the open end of the pipe will add to the effectiveness of the explosive.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 2
Mines and Grenades
2.1 Pipe Hand Grenade
Hand grenades can be made from a piece of iron pipe. The filler can be plastic or granular military
explosive, improvised explosive, or propellant from shotgun or small arms ammunition.
Materials Required
Iron pipe, threaded ends, 1-1/2 inch to 3 inches
diameter, 3 inches to 8 inches long
Two (2) iron pipe caps
Explosive or propellant
Nonelectric blasting cap (commercial or military)
Fuse cord
Hand drill
Pliers
Procedure
1. Place blasting cap on one end of fuse cord and crimp
with pliers.
Note: To find out how long the fuse cord should be,
check the time it takes a known length to burn. If 12
inches burns in 30 seconds, a 6-inch cord will ignite the
grenade in 15 seconds.
2. Screw pipe cap to one and of pipe. Place fuse cord
with blasting cap into the opposite end so that the
blasting cap in near the center of the pipe.
Note: If plastic explosive is to be used, fill pipe before
inserting blasting cap. Push a round stick into the
center of the explosive to make a hole and then insert
the blasting cap.
3. Pour explosive or propellant into pipe a little bit at a time.
Tap the base of the pipe frequently to settle filler.
4. Drill a hole in the center of the unassembled pipe cap
large enough for the fume cord to pass through.
5. Wipe pipe threads to remove any filler
material. Slide the drilled pipe cap over the fuse
and screw hand tight onto the pipe.
2.2 Nail Grenade
Effective fragmentation grenades can be made from a block of TNT or other blasting explosive and
nails.
Materials Required
Block of TNT or other blasting explosive
Nails
Nonelectric military blasting cap
Fuse Cord
Tape, string, wire or glue
Procedure
1. If an explosive charge other than a standard TNT
block is used, make a hole in the center of the charge for
inserting the blasting cap. TNT can be drilled with
relative safety. With plastic explosives, a hole can be
made by pressing a round stick into the center of the
charge. The hole should be deep enough that the blasting
cap is totally within the explosive.
2. Tape, tie or glue one or two rows of closely packed
nails to sides of explosive block. Nails should
completely cover the four surfaces of the block.
3. Place blasting cap on one end of the fuse cord and
crimp with pliers.
Note: To find out how long the fuse cord should
be, check the time it takes a known length to
burn. If 12 inches (30 cm) burns for 30 seconds,
a 10 second delay will require a 4 inch (10 cm)
fuse.
4.
Insert the blasting cap in the hole in the block of explosive. Tape or tie fuse cord securely in place so
that it will not fall out when the grenade is thrown.
Alternate Use
An effective directional antipersonnel mine can be made
by placing nails on only one side of the explosive block.
For this came, an electric blasting cap can be used.
2.3 Wine Bottle Cone Charge
This cone charge will penetrate 3 to 4 inches of armor. Placed on an engine or engine compartment it
will disable a tank or other vehicle.
Materials Required
Glass wine bottle with false bottom (cone shaped)
Plastic or castable explosive
Blasting cap
Gasoline or kerosene (small amount)
String
Adhesive tape
Procedure
1. Soak a piece of string in gasoline or kerosene.
Double wrap this string around the wine bottle
approximately 3 inches (7-1/2 cm) above the top of
the cone.
Note: A small amount of motor oil added to the
gasoline or kerosene will improve results.
2. Ignite the string and allow to burn for 2
minutes. Then plunge the bottle into cold water
to crack the bottle. The top half can now be
easily removed and discarded.
3. If plastic explosive is used:
Pack explosive into the bottle a little at a time
compressing with a wooden rod. Fill the bottle
to the top.
a.
Press a 1/4 inch wooden dowel 1/2 inch (12
mm) into the middle of the top of the
explosive charge to form a hole for the
blasting cap.
b.
4. If TNT or other castable explosive is used:
Break explosive into small pieces using a wooden mallet or nonsparking metal tools. Place
pieces in a tin can.
a.
Suspend this can in a larger container which
is partly filled with water. A stiff wire or
stick pushed through the smaller can will
accomplish this.
Caution: The inner can must not rest
on the bottom of the outer container.
b.
Heat the container on an electric hot plate
or other heat source. Stir the explosive
frequently with a wooden stick while it is
melting.
Caution: Keep area well ventilated
while melting explosive. Fumes may
be poisonous.
c.
d. When all the explosive has melted, remove the inner container and stir the molten explosive
until it begins to thicken. During this time the bottom half of the wine bottle should be placed in
the container of hot water. This will preheat the bottle so that it will not crack when the
explosive is poured.
Remove the bottle from hot water and dry thoroughly. Pour molten explosive into the bottle and
allow to cool. The crust which forms on top of the charge during cooling should be broken with
a wooden stick and more explosive added. Do this as often as necessary until the bottle is filled
to the top.
e.
When explosive has completely hardened, bore a hole for the blasting cap in the middle of the
top of the charge about 1/2 inch (12 mm) deep.
f.
How to Use
1. Place blasting cap in the hole in the top of the charge. If nonelectric
cap is used be sure cap is crimped around fuze and fuze is long enough to
provide safe delay.
2. Place the charge so that the bottom is 3 to 4 inches (7-1/2 to 10
cm) from the target. This can be done by taping legs to the charge or
any other convenient means as long as there is nothing between the
base of the charge and the target.
3. If electric cap is used, connect blasting cap wires to firing circuit.
Note: The effectiveness of this charge can be increased by
placing it inside a can, box, or similar container and packing
sand or dirt between the charge and the container.
2.4 Grenade-Tin Can Land Mine
This device can be used as a land mine that will explode when the trip wire is pulled.
Materials Required
Hand grenade having side safety lever
Sturdy container, open at one end, that is just large enough to fit over grenade and its safety lever (tin
can of proper size is suitable)
Strong string or wire
Note: The container must be of such a size that, when the grenade is placed in it and the safety pin
removed, its sides will prevent the safety lever from springing open. One end must be completely open.
Procedure
1. Fasten one piece of string to the closed end of container,
making a strong connection. This can be done by punching 2
holes in the can, looping the string through them, and tying a
knot.
2. Tie free end of this string to bush, stake, fencepost, etc.
3. Fasten another length of string to the grenade such that it
cannot interfere with the functioning of the ignition mechanism
of the grenade.
4. Insert grenade into container.
5. Lay free length of string across path and fasten to stake, bush, etc. The string should remain taut.
How to Use
1. Carefully withdraw safety pin by pulling on ring. Be sure safety lever is restrained during this
operation. Grenade will function in normal manner when trip wire is pulled.
Note: In areas where concealment is possible, a greater effect may be obtained by suspending the
grenade several feet above ground, as illustrated below.
2.5 Mortar Scrap Mine
A directional shrapnel launcher that can be placed in the path of advancing troops.
Materials Required
Iron pipe approximately 3 feet (1 meter) long and 2 inches to 4 inches (5 to 10 cm) in diameter and
threaded on at least one end. Salvaged artillery cartridge case may also be used.
Threaded cap to fit pipe
Black powder or salvaged artillery propellant about 1/2 pound (200 grams) total
Electrical igniter (commercial squib or improvised igniter, section 6.1). Safety or improvised fuse may
also be used.
Small stones about 1 inch (2-1/2 cm) in diameter or small size scrap; about 1 pound (400 grams) total
Rags for wadding, each about 20 inches by 20 inches (50 cm x 50 cm)
Paper or bag
Battery and wire
Stick (nonmetallic)
Note: Be sure pipe has no cracks or flaws.
Procedure
1. Screw threaded cap onto pipe.
2. Place propellant and igniter in paper or rag and tie
package with string so contents will not fall out.
3. Insert packaged propellant and igniter into pipe until package rests against threaded cap leaving firing
leads extending from open end of pipe.
4. Roll rag till it is about 6 inches (15-1/2 cm) long and the same diameter as pipe. Insert rag wadding
against packaged propellant igniter. With caution, pack tightly using stick.
5. Insert stones and/or scrap metal into pipe.
6. Insert second piece of rag wadding against stones and/or metal scrap. Pack tightly as before.
How to Use
1. Bury pipe in ground with open end facing the expected path of the enemy. The open end may be
covered with cardboard and a thin layer of dirt or leaves as camouflage.
2. Connect firing leads to battery and switch. Mine can be remotely fired when needed or attached to
trip device placed in path of advancing troops.
Note: A nonelectrical ignition system can be substituted for the electrical ignition system as follows.
1. Follow above procedure, substituting safety fuse for igniter.
2. Light safety fuse when ready to fire.
2.6 Coke Bottle Shaped Charge
This shaped charge will penetrate 3 inches (7-1/2 cm) of armor. (It will disable a vehicle if placed on the
engine or engine compartment).
Materials Required
Glass Coke bottle, 6-1/2 ounce (192 ml) size
Plastic or castable explosive, about 1 pound (454 grams)
Blasting cap
Metal cylinder, open at both ends, about 6 inches (15 cm) long and 2
inches (5 cm) inside diameter. Cylinder should be heavy walled for
best results.
Plug to fit mouth of coke bottle (rags, metal, wood, paper, etc.)
Nonmetal rod about 1/4 inch (6 mm) in diameter and 8 inches (20 cm)
or more in length
Tape or string
2 tin cans if castable explosive is used (section 2.3)
Note: Cylinder may be cardboard, plastic, etc. if castable explosive is used.
Procedure
1. Place plug in mouth of bottle.
2. Place cylinder over top of bottle until bottom of cylinder rests on
widest part of bottle. Tape cylinder to bottle. Container should be
straight on top of bottle.
3. If plastic explosive is used:
Place explosive in cylinder a little at a time
tamping with rod until cylinder is full.
a.
Press the rod about 1/2 inch (1 cm) into the middle of the top of the explosive charge to form a
hole for the blasting cap.
b.
4. If castable explosive is used, follow procedure of
Wine Bottle Cone Charge, section 2.3, step 4, a through
f.
How to Use
Method I – If Electrical Blasting Cap is Used
1. Place blasting cap in hole in top of explosive.
Caution: Do not insert blasting cap until charge is ready to be detonated.
2. Place bottom of Coke bottle flush against the target. If target is
not flat and horizontal, fasten bottle to target by any convenient
means, such as by placing tape or string around target and top of
bottle. Bottom of bottle acts as stand-off.
Caution: Be sure that base of bottle is flush against target and that there is nothing between the
target and the base of the bottle.
3. Connect leads from blasting cap to firing circuit.
Method II – If Nonelectrical Blasting Cap is Used
1. Crimp cap around fuse.
Caution: Be sure fuse is long enough to provide a safe delay.
2. Follow steps 1, 2, and cautions of Method I.
3. Light fuse when ready to fire.
2.7 Cylindrical Cavity Shaped Charge
A shaped charge can be made from common pipe. It will penetrate 1-1/2 inch (3-1/2 cm) of steel,
producing a hole 1-1/2 inch (3-1/2 cm) in diameter.
Materials Required
Iron or steel pipe, 2 to 2-1/2 inches (5 to 6-1/2 cm) in diameter and 3 to 4
inches (7-1/2 to 10 cm) long
Metal pipe, 1/2 to 3/4 inch (1-1/2 to 2 cm) in diameter and 1-1/2 inch
(3-1/2 cm) long, open at both ends. (The wall of the pipe should be as
thin as possible.)
Blasting cap
Nonmetallic rod, 1/4 inch (6 mm) in diameter
Plastic or castable explosive
2 metal cans of different sizes
Stick or wire If castable explosive is used
Heat source
Procedure
1. If plastic explosive is used:
Place larger pipe on flat
surface. Hand pack and tamp
explosive into pipe. Leave
approximately 1/4 inch (6 mm)
space at top.
a.
Push rod into center of explosive. Enlarge hole in explosive to diameter and length of small
pipe.
b.
Insert small pipe into hole.
Important: Be sure direct contact is made between explosive and small pipe. Tamp
explosive around pipe by hand if necessary.
c.
Make sure that there is 1/4 inch (6 mm) empty space above small pipe. Remove explosive if
necessary.
d.
Turn pipe upside down
and push rod 1/2 inch
(1-1/4 cm) into center
of opposite end of
explosive to form a
hole for the blasting
cap.
e.
Caution: Do not insert blasting cap in hole until ready to fire shaped charge.
2. If TNT or other castable explosive is used:
a. Follow procedure, section 2.3, step 4, parts a, b, c, including cautions.
When all the explosive has melted, remove the inner container and stir the molten explosive
until it begins to thicken.
b.
Place large pipe on flat surface. Pour
explosive into pipe until it is 1-3/4 inch (4
cm) from the top.
c.
Place small pipe in center of large
pipe so that it rests on top of
explosive. Holding small pipe in
place, pour explosive around small
pipe until explosive is 1/4 inch (6
mm) from top of large pipe.
d.
Allow explosive to cool. Break crust that forms on top of the charge during cooling with a
wooden stick and add more explosive. Do this as often as necessary until explosive is 1/4 inch (6
mm) from top.
e.
When explosive has completely
hardened, turn pipe upside down and
bore a hole for the blasting cap in the
middle of the top of the charge about 1/2
inch (1-1/4 cm) deep.
f.
How to Use
Method I – If Electrical Blasting Cap is Used
1. Place blasting cap in hole made for it.
Caution: Do not insert blasting cap until charge is ready to fire.
2. Place other end of pipe flush against the target. Fasten
pipe to target by any convenient means, such as by
placing tape or string around target and top of pipe, if
target is not flat and horizontal.
Caution: Be sure that base of pipe is flush against target and that there is nothing between the
target and the base of the pipe.
3. Connect leads from blasting cap to firing circuit.
Method II – If Nonelectrical Blasting Cap is Used
1. Crimp cap around fuse.
Caution: Be sure fuse is long enough to provide a safe delay.
2. Follow steps 1, 2, and caution of Method I.
3. Light fuse when ready to fire.
2.8 Not Available
The original printed document from which this electronic edition was produced goes directly from
section 2.7 to 2.9. There was no section 2.8.
2.9 Funnel Shaped Charge
An effective shaped charge can be made using various types of commercial funnels. See table for
penetration capabilities.
Materials Required
Container (soda or beer can, etc.), approximately 2-1/2 inches diameter x 5 inches long (6-1/4 cm x
12-1/2 cm)
Funnel(s) (glass, steel, or aluminum) 2-1/2 inches (6-1/2 cm) in diameter
Wooden rod or stick, 1/4 inch (6 mm) in diameter
Tape
Blasting cap (electrical or nonelectrical)
Sharp cutting edge
Explosive
Procedure
1. Remove the top and bottom from can and discard.
2. Cut off and throw away the spout of the funnel(s).
Note: When using 3 funnels (see table), place the modified funnels
together as tight and as straight as possible. Tape the funnels
together at the outer ridges.
3. Place the funnel(s) in the modified can. Tape on
outer ridges to hold funnel(s) to can.
4. If plastic explosive is used, fill the can with the explosive
using small quantities, and tamp with wooden rod or stick.
Note: If castable explosive is used, refer to step 4 of section 2.3.
5. Cut wooden rod to lengths 3 inches longer than
the standoff length. (See table.) Position three of
these rods around the explosive filled can and hold
in place with tape.
Note: The position of the rods on the container
must conform to standoff dimensions to obtain the
penetrations given in the table.
Table
Funnel Number of Standoff Penetration
Material Funnels inches metric inches metric
Glass 1 3-1/2 9 cm 4 10 cm
Steel 3 1 2-1/2 cm 2-1/2 6 cm
Aluminum 3 3-1/2 9 cm 2-1/2 6 cm
If only one steel or aluminum funnel is available:
Steel 1 1 2-1/2 cm 1-1/2 4 cm
Aluminum 1 1 2-1/2 cm 1-1/2 4 cm
6. Make a hole for blasting cap in the center of the explosive
with rod or stick.
Caution: Do not place blasting cap in place until the funnel shaped charge is ready for use.
How to Use
1. Place blasting cap in the hole in top of the charge. If
nonelectric cap is used, be sure cap is crimped around fuse and
fuse is long enough to provide safe delay.
2. Place (tape if necessary) the funnel shaped charge on the target so that nothing is between the base of
charge and target.
3. If electric cap is used, connect blasting cap wires to firing circuit.
2.10 Linear Shaped Charge
This shaped charge made from construction materials will cut through up to nearly 3 inches of armor
depending upon the liner used (see table).
Materials Required
Standard structural angle or pipe (see table)
Wood or cardboard container
Hacksaw
If pipe is used
Vice
Wooden rod, 1/4 inch (6 mm) diameter
Explosive
Blasting cap
Tape
Table
Type Material Liner Size
inches – nominal
Standoff Penetration
inches metric inches metric
angle steel 3 x 3 legs x 1/4 web 2 5 cm 2-3/4 7 cm
angle aluminum 2 x 2 legs x 3/16 web 5-1/2 14 cm 2-1/2 6 cm
pipe half section aluminum 2 diameter 2 5 cm 2 5 cm
pipe half section copper 2 diameter 1 2-1/2 cm 1-3/4 4 cm
Note: These were the only linear shaped charges of this type that were found to be more efficient than
the Ribbon Charge.
Ribbon Charge: No standoff is required; just place on target.
Procedure
1. If pipe is used:
Place the pipe in the vise and cut pipe in
half lengthwise. Remove the pipe half
sections from vise.
a.
Discard one of the pipe half sections, or
save for another charge.
b.
2. Place angle or pipe half section with open end face down on a flat surface.
3. Make container from any material available. The container must be as wide as the angle or pipe half
section, twice as high, and as long as the desired cut to be made with the charge.
4. Place container over the liner (angle or pipe half section) and tape liner to container.
5. If plastic explosive is used, fill the container with the
explosive using small quantities, and tamp explosive
with wooden rod or stick.
Note: If castable explosive is used, refer to step 4 of
section 2.3.
6. Cut wooden rod to lengths 2 inches longer than the
standoff length (see table). Position the rods at the
corners of the explosive filled container and hold in
place with tape.
Note: The position of the rods on the container must
conform to standoff and penetration dimensions given in
the table.
7. Make a hole for blasting cap in the side of the container 1/2 inch above the liner and centered with the
wooden rod.
Caution: Do not place blasting cap in place until the linear shaped charge is ready for use.
How to Use
1. Place blasting cap into hole on the side of the
container. If nonelectric cap is used, be sure cap is
crimped around fuse and fuse is long enough to provide
safe delay.
2. Place (tape if necessary) the linear shaped charge on the target so that nothing is between base of
charge and target.
3. If electric cap is used, connect blasting cap wires to firing circuit.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 3
Small Arms Weapons and Ammunition
3.1 Pipe Pistol for 9 mm Ammunition
A 9 mm pistol can be made from 1/4 inch steel gas or water pipe and fittings.
Materials Required
1/4 inch nominal size steel pipe 4 to 6 inches long with
threaded ends
1/4 inch solid pipe plug
Two (2) steel pipe couplings
Metal strap – roughly 1/8 inch x 1/4 inch x 5 inch
Two (2) elastic bands
Flat head nail – 6D or 8D (approximately 1/16 inch
diameter)
Two (2) wood screws #8
Wood 8 inch x 5 inch x 1 inch
Drill
1/4 inch wood or metal rod, (approximately 8 inches
long)
Procedure
1. Carefully inspect pipe and fittings.
a. Make sure that there are no cracks or other flaws in the pipe or fittings.
Check inside diameter of pipe using a 9 mm cartridge as a gauge. The bullet should closely fit
into the pipe without forcing but the cartridge case should not fit into pipe.
b.
Outside diameter of pipe must not be less than 1-1/2 times bullet diameter (0.536 inches; 1.37
cm)
c.
2. Drill a 9/16 inch (1.43 cm) diameter hole 3/8 inch
(approximately 1 cm) into one coupling to remove the thread.
Drilled section should fit tightly over smooth section of pipe.
3. Drill a 25/64 inch (1 cm) diameter hole 3/4 inch
(1.9 cm) into pipe. Use cartridge as a gauge; when
a cartridge is inserted into the pipe, the base of the
case should be even with the end of the pipe.
Thread coupling tightly onto pipe, drilled end first.
4. Drill a hole in the center of the pipe plug just large
enough for the nail to fit through.
Hole must be centered in plug.
5. Push nail through plug until head of nail is flush
with square end. Cut nail off at other end 1/16 inch
(0.158 cm) away from plug. Round off end of nail
with file.
6. Bend metal strap to “U” shape and drill holes for
wood screws. File two small notches at top.
7. Saw or otherwise shape 1 inch (2.54 cm) thick hard
wood into stock.
8. Drill a 9/16 inch diameter (1.43 cm) hole
through the stock. The center of the hole
should be approximately 1/2 inch (1.27 cm)
from the top.
9. Slide the pipe through this hole and attach
front coupling. Screw drilled plug into rear
coupling.
Note: If 9/16 inch drill is not available cut a “V”
groove in the top of the stock and tape pipe
securely in place.
10. Position metal strap on stock so that top will
hit the head of the nail. Attach to stock with
wood screw on each side.
11. String elastic bands from front coupling to
notch on each side of the strap.
Safety Check – Test Fire Pistol Before Hand Firing
1. Locate a barrier such as a stone wall or large tree which you can stand behind in case the pistol
ruptures when fired.
2. Mount pistol solidly to a table or other rigid support at least ten feet in front of the barrier.
3. Attach a cord to the firing strap on the pistol.
4. Holding the other end of the cord, go behind the barrier.
5. Pull the cord so that the firing strap is held back.
6. Release the cord to fire the pistol. (If pistol does not fire, shorten the elastic bands or increase their
number.)
Important: Fire at least five rounds from behind the barrier and then reinspect the pistol before
you attempt to hand fire it.
How to Operate Pistol
1. To Load:
a. Remove plug from rear coupling.
b. Place cartridge into pipe.
c. Replace plug.
2. To Fire:
a. Pull strap back and hold with thumb until ready.
b. Release strap.
3. To Remove Shell Case:
a. Remove plug from rear coupling.
Insert 1/4 inch diameter steel or wooden rod
into front of pistol and push shell case out.
b.
3.2 Shotgun (12 gauge)
A 12-gauge shotgun can be made from 3/4 inch water or gas pipe and fittings.
Materials Required
Wood 2 inches x 4 inches x 32 inches
3/4 inch nominal size water or gas pipe 20 inches to 30 inches long threaded on one end
3/4 inch steel coupling
Solid 3/4 inch pipe plug
Metal strap (1/4 inch x 1/16 inch x 4 inch)
Twine, heavy (100 yards approximately)
3 wood screws and screwdriver
Flat head nail 6D or 8D
Hand drill
Saw or knife
File
Shellac or lacquer
Elastic Bands
Procedure
1. Carefully inspect pipe and fittings.
a. Make sure that there are no cracks or other flaws.
Check inside diameter of pipe. A 12-gauge shot shell should fit into the pipe but the brass rim
should not fit.
b.
c. Outside diameter of pipe must be at least 1 inch (2.54 cm).
2. Cut stock from wood using a saw or knife.
3. Cut a 3/8 inch deep “V” groove in top of the stock.
4. Turn coupling onto pipe until tight.
5. Coat pipe and “V” groove of stock with shellac or lacquer and, while still wet, place pipe in “V”
groove and wrap pipe and stock together using two heavy layers of twine. Coat twine with shellac or
lacquer after each layer.
6. Drill a hole through center of pipe plug large enough
for nail to pass through.
7. File threaded end of plug flat.
8. Push nail through plug and cut off flat 1/32 inch past
the plug.
9. Screw plug into coupling.
10. Bend 4 inch metal strap into “L” shape and
drill hole for wood screw. Notch metal strap on
the long side 1/2 inch from bend.
11. Position metal strap on stock so that top will hit the head of the nail. Attach to stock with wood
screw.
12. Place screw in each side of stock about 4 inch in front of metal strap. Pass elastic bands through
notch in metal strap and attach to screw on each side of the stock.
Safety Check – Test Fire Shotgun Before Hand Firing
1. Locate a barrier such as a stone wall or large tree which you can stand behind in case the weapon
explodes when fired.
2. Mount shotgun solidly to a table or other rigid support at least ten feet in front of the barrier.
3. Attach a long cord to the firing strap on the shotgun.
4. Holding the other end of the cord, go behind the barrier.
5. Pull the cord so that the firing strap is held back.
6. Release the cord to fire the shotgun. (If shotgun does not fire, shorten the elastic bands or increase
their number.)
Important: Fire at least five rounds from behind the barrier and then reinspect the shotgun before
you attempt to shoulder fire it.
How to Operate Shotgun
1. To Load:
a. Take plug out of coupling.
b. Put shotgun shell into pipe.
c. Screw plug hand tight into coupling.
2. To Fire:
a. Pull strap back and hold with thumb.
b. Release strap.
3. To Unload Gun:
a. Take plug out of coupling.
b. Shake out used cartridge.
3.3 Shotshell Dispersion Control
When desired, shotshell can be modified to reduce shot dispersion.
Materials Required
Shotshell
Screwdriver or knife
Any of the following filler materials:
Crushed rice
Rice flour
Dry bread crumbs
Fine dry sawdust
Procedure
1. Carefully remove crimp from shotshell using a screwdriver or knife.
Note: If cartridge is of roll-crimp type, remove
top wad.
2. Pour shot from shell.
3. Replace one layer of shot in the cartridge. Pour
in filler material to fill the spaces between the shot.
4. Repeat step 3 until all shot has been replaced.
5. Replace top wad (if applicable) and refold crimp.
6. Roll shell on flat surface to smooth out crimp and
restore roundness.
7. Seal end of case with wax.
How to Use
This round is loaded and fired in the same manner as standard shotshell. The shot spread will be about
2/3 that of a standard round.
3.4 Carbine (7.62 mm Standard Rifle Ammunition)
A rifle can be made from water or gas pipe and fittings. Standard cartridges are used for ammunition.
Materials Required
Wood approximately 2 inches x 4 inches x 30 inches
1/4 inch nominal size iron water or gas pipe 20 inches long threaded at one end
3/8 inch to 1/4 inch reducer
3/8 inch x 1-1/2 inch threaded pipe
3/8 inch pipe coupling
Metal strap approximately 1/2 inch x 1/16 inch x 4 inches
Twine, heavy (100 yards approximately)
3 wood screws and screwdriver
Flat head nail about 1 inch long
Hand drill
Saw or knife
File
Pipe wrench
Shellac or lacquer
Elastic bands
Solid 3/8 inch pipe plug
Procedure
1. Inspect pipe and fittings carefully.
a. Be sure that there are no cracks or flaws.
b. Check inside diameter of pipe. A 7.62 mm projectile should fit into 3/8 inch pipe.
2. Cut stock from wood using saw or knife.
3. Cut a 1/4 inch deep “V” groove in top of the stock.
4. Fabricate rifle barrel from pipe.
File or drill inside diameter of threaded end of 20 inch pipe for about 1/4 inch so neck of
cartridge case will fit in.
a.
b. Screw reducer onto threaded pipe using pipe wrench.
c. Screw short threaded pipe into reducer.
Turn 3/8 pipe coupling onto threaded pipe using
pipe wrench. All fittings should be as tight as
possible. Do not split fittings.
d.
5. Coat pipe and “V” groove of stock with shellac or lacquer. While still wet, place pipe in “V” groove
and wrap pipe and stock together using two layers of twine. Coat twine with shellac or lacquer after
each layer.
6. Drill a hole through center of pipe plug large enough for
nail to pass through.
7. File threaded end of plug flat.
8. Push nail through plug and out off rounded 1/32 inch (2
mm) past the plug.
9. Screw plug into coupling.
10. Bend 4 inch metal strap into “L” shape and
drill hole for wood screw. Notch metal strap on
the long side 1/2 inch from bend.
11. Position metal strap on stock so that top will hit
the head of the nail. Attach to stock with wood
screw.
12. Place screw in each side of stock about 4 inches in front of metal strap. Pass elastic bands through
notch in metal strap and attach to screw on each side of the stock.
Safety Check – Test Fire Rifle Before Hand Firing
1. Locate a barrier such as a stone wall or large tree which you can stand behind to test fire weapon.
2. Mount rifle solidly to a table or other rigid support at least ten feet in front of the barrier.
3. Attach a long cord to the firing strap on the rifle.
4. Holding the other end of the cord, go behind the barrier.
5. Pull the cord so that the firing strap is held back.
6. Release the cord to fire the rifle. (If the rifle does not fire, shorten the elastic bands or increase their
number.)
Important: Fire at least five rounds from behind a barrier and then reinspect the rifle before you
attempt to shoulder fire it.
How to Operate Rifle
1. To Load:
a. Remove plug from coupling.
b. Put cartridge into pipe.
c. Screw plug hand tight into coupling.
2. To Fire:
a. Pull strap back and hold with thumb.
b. Release strap.
3. To Unload Gun:
a. Take plug out of coupling.
b. Drive out used case using stick or twig.
3.5 Reusable Primer
A method of making a previously fired primer reusable.
Materials Required
Used cartridge case
2 long nails having approximately the same diameter as the inside of the primer pocket
“Strike-anywhere” matches – 2 or 3 are needed for each primer
Vise
Hammer
Knife or other sharp edged instrument
Procedure
1. File one nail to a needle point so that it is small
enough to fit through hole in primer pocket.
2. Place cartridge case and nail between jaws of vise. Force out fired primer with nail as shown:
3. Remove anvil from primer cup.
4. File down point of second nail until tip is flat.
5. Remove indentations from face of primer cup with hammer and
flattened nail.
6. Cut off tips of the heads of “strike-anywhere” matches using knife.
Carefully crush the match tips on dry surface with wooden match stick
until the mixture is the consistency of sugar.
Caution: Do not crush more than 3 match tips at one time or the mixture may explode.
7. Pour mixture into primer cup. Compress mixture with
wooden match stick until primer cup is fully packed.
8. Place anvil in primer pocket with legs down.
9. Place cup in pocket with mixture facing downward.
10. Place cartridge case and primer cup between vise jaws, and press slowly until primer is seated into
bottom of pocket. The primer is now ready to use.
3.6 Pipe Pistol for .45 Caliber Ammunition
A .45 caliber pistol can be made from 3/8 inch nominal diameter steel gas or water pipe and fittings.
Lethal range is about 15 yards (13-1/2 meters).
Materials Required
Steel pipe, 3/8 inch (1 cm) nominal diameter and 6 inches (15 cm) long with threaded ends
2 threaded couplings to fit pipe
Solid pipe plug to fit pipe coupling
Hard wood, 8-1/2 inches x 6-1/2 inches x 1 inch (21 cm x 16-1/2 cm x 2-1/2 cm)
Tape or string
Flat head nail, approximately 1/16 inch (1-1/2 mm) in diameter
2 wood screws, approximately 1/16 inch (1-1/2 mm) in diameter
Metal strap, 5 inches x 1/4 inch x 1/8 inch (12-1/2 cm x 6 mm x 1 mm)
Bolt, 4 inches (10 cm) long, with nut (optional)
Elastic bands
Drills, one 1/16 inch (1-1/2 mm) in diameter, and one having same diameter as bolt (optional)
Rod, 1/4 inch (6 mm) in diameter and 8 inches (20 cm) long
Saw or knife
Procedure
1. Carefully inspect pipe and fittings.
a. Make sure that there are no cracks or other flaws in the pipe and fittings.
Check inside diameter of pipe using a .45 caliber cartridge as a gauge. The cartridge case should
fit into the pipe snugly but without forcing.
b.
c. Outside diameter of pipe must not be less than 1-1/2 times the bullet diameter.
2. Follow procedure of section 3.1, steps 4, 5, and 6.
3. Cut stock from wood using saw or knife.
Inches Centimeters
1-1/2 inch 4 cm
8-1/2 inch 21-1/2 cm
6 inch 15 cm
1-1/2 inch 4 cm
5 inch 12-1/2 cm
4. Cut a 3/8 inch (9-1/2 mm) deep groove in top of stock.
5. Screw couplings onto pipe. Screw plug into one coupling.
6. Securely attach pipe to stock using string or tape.
7. Follow procedures of section 3.1, steps 10 and 11.
8. (Optional) Bend bolt for trigger. Drill hole in stock and place bolt in hole so strap will be anchored
by bolt when pulled back. If bolt is not available, use strap as trigger by pulling back and releasing.
9. Follow Safety Check, section 3.1.
How to Use
1. To Load:
a. Remove plug from rear coupling.
Wrap string or elastic band around extractor
groove so case will seat into barrel securely.
b.
c. Place cartridge in pipe.
d. Replace plug.
2. To Fire:
a. Pull metal strap back and anchor in trigger.
b. Pull trigger when ready to fire.
Note: If bolt is not used, pull strap back and release.
3. To Remove Cartridge Case:
a. Remove plug from rear coupling.
Insert rod into front of pistol and push cartridge
case out.
b.
3.7 Match Gun
An improvised weapon using safety match heads as the propellant and a metal object as the projectile.
Lethal range is about 40 yards (36 meters).
Materials Required
Metal pipe 24 inches (61 cm) long and 3/8 inch (1 cm) in diameter (nominal size) or its equivalent,
threaded on one end
End cap to fit pipe
Safety matches – 3 books of 20 matches each
Wood – 28 inches x 4 inches x 1 inch (70 cm x 10 cm x 2.5 cm)
Toy caps or safety fuse or “Strike-anywhere” matches (2)
Electrical tape or string
Metal strap, about 4 inches x 1/4 inch x 3/16 inch (10 cm x 6 mm x 4.5 mm)
2 rags, about 1 in x 12 inches and 1 inch x 3 inches (2-1/2 cm x 30 cm and 2-1/2 cm x 8 cm)
Wood screws
Elastic bands
Metal object (steel rod, bolt with head cut off, etc.), approximately 7/16 inch (11 mm) in diameter,
and 7/16 inch (11 mm) long if iron or steel, 1-1/4 inch (31 mm) long if aluminum, 5/16 inch (8 mm)
long if lead
Metal disk 1 inch (2-1/2 cm) in diameter and 1/16 inch (1-1/2 mm) thick
Bolt, 3/32 inch (2-1/2 mm) or smaller in diameter and nut to fit
Saw or knife
Procedure
1. Carefully inspect pipe and fittings. Be sure that there are no cracks or other flaws.
2. Drill small hole in center of end cap. If safety fuse is
used, be sure it will pass through this hole.
3. Cut stock from wood using saw or knife.
Metric English
5 cm 2 inches
10 cm 4 inches
36 cm 14 inches
71 cm 28 inches
4. Cut 3/8 inch (9-1/2 mm) deep “V” groove in top of stock.
5. Screw end cap onto pipe until finger tight.
6. Attach pipe to stock with string or tape.
7. Bend metal strap into “L” shape and drill
holes for wood screw. Notch metal strap on
long side 1/2 inch (1 cm) from bend.
8. Position metal strap on stock so that the top will hit the center of hole drilled in end cap.
9. Attach metal disk to strap with nut and bolt. This will
deflect blast from hole in end cap when gun is fired. Be sure
that head of bolt is centered on hole in end cap.
10. Attach strap to stock with wood screws.
11. Place screw on each side of stock about 4 inches (10 cm) in front of metal strap. Pass elastic bands
through notch in metal strap and attach to screw on each side of stock.
How to Use
A. When Toy Caps Are Available:
1. Cut off match heads from 3 books of matches
with knife. Pour match heads into pipe.
2. Fold one end of 1 inch x 12 inch rag 3 times so that it
becomes a one inch square of 3 thicknesses. Place rag into pipe
to cover match heads, folded end first. Tamp firmly with
caution.
3. Place metal object into pipe. Place 1 inch x 3 inch rag into pipe to cover projectile. Tamp firmly with
caution.
4. Place 2 toy caps over small hole in end cap.
Be sure metal strap will hit caps when it is
released.
Note: It may be necessary to tape toy caps to end
cap.
5. When ready to fire, pull metal strap back and release.
B. When “Strike-Anywhere” Matches Are Available:
1. Follow steps 1 through 3 in A.
2. Carefully cut off tips of heads of 2 “strike-anywhere” matches with
knife.
3. Place one tip in hole in end cap. Push in with wooden end of match stick.
4. Place second match tip on a piece of tape.
Place tape so match tip is directly over hole in
end cap.
5. When ready to fire, pull metal strap back and release.
C. When Safety Fuse Is Available: (Recommended for Booby Traps)
1. Remove end cap from pipe. Knot one end of
safety fuse. Thread safety fuse through hole in end
cap so that knot is on inside of end cap.
2. Follow steps 1 through 3 in A.
3. Tie several matches to safety fuse near outside
of end cap.
Note: Bare end of safety fuse should be inside match head cluster.
4. Wrap match covers around matches and tie.
Striker should be in contact with match bands.
5. Replace end cap on pipe.
6. When ready to fire, pull match cover off with strong, firm, quick motion.
Safety Check – Test Fire Gun Before Hand Firing
1. Locate a barrier such as a stone wall or large tree which you can stand behind in case the weapon
explodes when fired.
2. Mount gun solidly to a table or other rigid support at least ten feet in front of the barrier.
3. Attach a long cord to the firing strap on the gun.
4. Holding the other end of the cord, go behind the barrier.
5. Pull the cord so that the firing strap is held back.
6. Release the cord to fire the gun. (If gun does not fire, shorten the elastic bands or increase their
number.)
Important: Fire at least five rounds from behind the barrier and then reinspect the gun before
you attempt to shoulder fire it.
3.8 Rifle Cartridge
Note: See section 3.5 for reusable primer.
A method of making a previously fired rifle cartridge reusable.
Materials Required
Empty rifle cartridge, be sure that it still fits inside gun
Threaded bolt that fits into neck of cartridge at least 1-1/4 inch (3 cm) long
Safety or “strike-anywhere” matches (about 58 matches are needed for 7.62 mm cartridge)
Rag wad (about 3/4 inch (1-1/2 cm) square for 7.62 mm cartridge)
Knife
Saw
Note: Number of matches and size of rag wad depend on particular cartridge used.
Procedure
1. Remove coating on heads of matches
by scraping match sticks with sharp edge.
Caution: If wooden “strike-anywhere” matches are
used, cut off tips first. Discard tips or use for Reusable
Primer, section 3.5.
2. Fill previously primed cartridge case with
match head coatings up to its neck. Pack evenly
and tightly with match stick.
Caution: Remove head of match stick before packing. In all packing operations, stand off to the
side and pack gently. Do not hammer.
3. Place rag wad in neck of case. Pack
with match stick from which head was
removed.
4. Saw off head end of bolt so remainder is
approximately the length of the standard bullet.
5. Place bolt in cartridge case so that it sticks out about the same length as the original bullet.
Note: If bolt does not fit snugly, force paper or match sticks between bolt and case, or wrap tape around
bolt before inserting in case.
3.9 Pipe Pistol for .38 Caliber Ammunition
A .38 caliber pistol can be made from 1/4 inch nominal diameter steel gas or water pipe and fittings.
Lethal range is approximately 33 yards (30 meters).
Materials Required
Steel pipe, 1/4 inch (6 mm) nominal diameter and 6 inches
(15 cm) long with threaded ends (nipple)
Solid pipe plug, 1/4 inch (6 mm) nominal diameter
2 steel pipe couplings, 1/4 inch (6 mm) nominal diameter
Metal strap, approximately 1/8 inch x 1/4 inch x 5 inches
(3 mm x 6 mm x 125 mm or 12-1/2 cm)
Elastic bands
Flat head nail – 6D or 8D, approximately 1/16 inch
diameter (1-1/2 mm)
2 wood screws, #8
Hard wood, 8 inches x 5 inches x 1 inch (20 cm x 12-1/2
cm x 2-1/2 cm)
Drill
Wood or metal rod, 1/4 inch (6 mm) diameter and 8 inches
(20 cm) long
Saw or knife
Procedure
1. Carefully inspect pipe and fittings.
a. Make sure that there are no cracks or other flaws in the pipe or fittings.
Check inside diameter of pipe using a .38 caliber cartridge as a gauge. The bullet should fit
closely into the pipe without forcing, but the cartridge case should not fit into the pipe.
b.
c. Outside diameter of pipe must not be less than 1-1/2 times the bullet diameter.
2. Drill a 35/64 inch (14 mm) diameter hole 3/4 inch (2 cm)
into one coupling to remove the thread. Drilled section
should fit tightly over smooth section of pipe.
3. Drill a 25/64 inch (1 cm) diameter hole 1-1/8 inch
(2.86 cm) into pipe. Use cartridge as a gauge; when a
cartridge is inserted into the pipe, the shoulder of the
case should butt against the end of the pipe. Thread
coupling tightly onto pipe, drilled end first.
4. Follow procedures of section 3.1, steps 4 through 11.
5. Follow Safety Check, section 3.1.
How to Operate Pistol
Follow procedures of How to Operate Pistol, section 3.1, steps 1, 2, and 3.
3.10 Pipe Pistol for .22 Caliber Ammunition —
Long or Short Cartridge
A .22 caliber pistol can be made from 1/8 inch nominal diameter extra heavy, steel gas or water pipe
and fittings. Lethal range is approximately 33 yards (30 meters).
Materials Required
Steel pipe, extra heavy, 1/8 inch (3 mm) nominal diameter
and 6 inches (15 cm) long with threaded ends (nipple)
Solid pipe plug, 1/8 inch (3 mm) nominal diameter
2 steel pipe couplings, 1/8 inch (3 mm) nominal diameter
Metal strap, approximately 1/8 inch x 1/4 inch x 5 inches
(3 mm x 6 mm x 125 mm or 12-1/2 cm)
Elastic bands
Flat head nail – 6D or 8D (approximately 1/16 inch (1-1/2
mm) diameter
2 wood screws, #8
Hard wood, 8 inches x 5 inches x 1 inch (20 cm x 12-1/2
cm x 2-1/2 cm)
Drill
Wood or metal rod, 1/8 inch (3 mm) diameter and 8
inches (20 cm) long
Saw or knife
Procedure
1. Carefully inspect pipe and fittings.
a. Make sure that there are no cracks or other flaws in the pipe or fittings.
Check inside diameter of pipe using a .22 caliber cartridge, long or short, as a gauge. The bullet
should fit closely into the pipe without forcing, but the cartridge case should not fit into the
pipe.
b.
c. Outside diameter of pipe must not be less than 1-1/2 times the bullet diameter.
2. Drill a 15/64 inch (1/2 cm) diameter
hole 9/16 inch (1-1/2 cm) deep in pipe for
long cartridge. (If a short cartridge is used,
drill hole 3/8 inch (1 cm) deep.) When a
cartridge is inserted into the pipe, the
shoulder of the case should butt against
the end of the pipe.
3. Screw the coupling onto the pipe. Cut coupling length to allow pipe plug to thread in pipe flush
against the cartridge case.
4. Drill a hole off center of the pipe plug just large
enough for the nail to fit through.
Note: Drilled hole must be off center in plug.
5. Push nail through pipe plug until head of nail is flush with
square end. Cut nail off at other end 1/16 inch (1-1/2 mm)
away from plug. Round off end with file.
6. Follow procedures of section 3.1, steps 6 through 11.
7. Follow Safety Check, section 3.1.
How to Operate
Follow procedures of How to Operate Pistol, section 3.1, steps 1, 2, and 3.
3.11 Low Signature System
Low signature systems (silencers) for improvised small arms weapons (section 3) can be made from
steel gas or water pipe and fittings.
Materials Required
Grenade container
Steel pipe nipple, 6 inches (15 cm) long – see Table I for diameter
2 steel pipe couplings – see Table II for dimensions
Cotton cloth – see Table II for dimensions
Drill
Absorbent cotton
Procedure
1. Drill hole in grenade container at both ends to fit outside diameter of pipe nipple. (See Table I.)
2. Drill four (4) rows of holes in pipe nipple. Use Table I for diameter and location of holes.
Table I
Low Signature System Dimensions
A B C (Coupling)
D
Holes
per
Row
(4-Rows)
Total
.45 caliber 3/8 1/4 3/8 3/8 12 48
.38 caliber 3/8 1/4 1/4 1/4 12 48
9 mm 3/8 1/4 1/4 1/4 12 48
7.62 mm 3/8 1/4 1/4 1/4 12 48
.22 caliber 1/4 5/32 1/8* 1/8 14 50
*Extra heavy pipe
All dimensions in inches
3. Thread one of the pipe couplings on the drilled pipe nipple.
4. Cut coupling length to allow barrel of weapon to thread fully into low signature system. Barrel
should butt against end of the drilled pipe nipple.
5. Separate the top half of the grenade container
from the bottom half.
6. Insert the pipe nipple in the drilled hole at the
base of the bottom half of container. Pack the
absorbent cotton inside the container and around
the pipe nipple.
7. Pack the absorbent cotton in top half of grenade container leaving hole in center. Assemble container
to the bottom half.
8. Thread the other coupling onto the pipe nipple.
Note: A longer container and pipe nipple, with same “A” and “B” dimensions as those given, will
further reduce the signature of the system.
How to Use
1. Thread the low signature system on the selected weapon securely.
2. Place the proper cotton wad size into the muzzle end of the system.
Table II
Cotton Wadding – Sizes
Weapon Cotton Wad Size
.45 caliber 1-1/2 x 6 inches
.38 caliber 1 x 4 inches
9 mm 1 x 4 inches
7.62 mm 1 x 4 inches
.22 caliber Not needed
3. Load weapon.
4. Weapon is now ready for use.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 4
Mortars and Rockets
4.1 Recoilless Launcher
A dual directional scrap fragment launcher which can be placed to cover the path of advancing
troops.
Materials Required
Iron water pipe approximately 4 feet (1 meter) long and 2 to 4 inches (5 to 10 cm) in diameter
Black powder (commercial) or salvaged artillery propellant about 1/2 pound (200 grams)
Safety or improvised fuse (section 6.7) or improvised electrical igniter (section 6.2)
Stones and/or metal scrap chunks approximately 1/2 inch (1 cm) in diameter – about 1 pound (400
grams) total
4 rags for wadding, each about 20 inches by 20 inches (50 cm by 50 cm)
Wire
Paper or rag
Note: Be sure that the water pipe has no cracks or flaws.
Procedure
1. Place propellant and igniter in paper or rag and tie
with string so contents cannot fall out.
2. Insert packaged propellant and igniter in center of pipe. Pull firing leads out one end of pipe.
3. Stuff a rag wad into each end of pipe and lightly tamp using a flat end stick.
4. Insert stones and/or scrap metal into each end of pipe. Be sure the same weight of material is used
in each side.
5. Insert a rag wad into each end of the pipe and pack tightly as before.
How to Use
1. Place scrap mine in a tree or pointed in the path of the enemy. Attach igniter lead to the firing
circuit. The recoilless launcher is now ready to fire.
2. If safety or improvised fuse is used instead of the detonator, place the fuse into the packaged
propellant through a hole drilled in the center of the pipe. Light free end of fuse when ready to fire.
Allow for normal delay time.
Caution: Scrap will be ejected from both ends of the launcher.
4.2 Shotgun Grenade Launcher
This device can be used to launch a hand grenade to a distance of 160 yards (150 meters) or more,
using a standard 12 gauge shotgun.
Materials Required
Grenade (Improvised pipe hand grenade, section 2.1, may be used)
12 gauge shotgun
12 gauge shotgun cartridges
Two washers, (brass, steel, iron, etc.), having outside diameter of 5/8 inch (1-1/2 cm)
Rubber disk 3/4 inch (2 cm) in diameter and 1/4 inch (6 mm) thick (leather, neoprene, etc. can be
used)
A 30 inch (75 cm) long piece of hard wood (maple, oak, etc.) approximately 5/8 inch (1-1/2 cm) in
diameter. Be sure that wood will slide into barrel easily.
Tin can (grenade and its safety lever must fit into can)
Two wooden blocks about 2 inches (5 cm) square and 1-1/2 inch (4 cm) thick
One wood screw about 1 inch (2-1/2 cm) long
Two nails about 2 inches (5 cm) long
12 gauge wads, tissue paper, or cotton
Adhesive tape, string, or wire
Drill
Procedure
1. Punch hole in center of rubber disk large enough for screw to pass through.
2. Make pushrod as shown.
Note: Gun barrel is slightly less than 3/4 inch in diameter. If rubber disk does not fit in barrel, file or
trim it very slightly. It should fit tightly.
3. Drill a hole through the center of one wooden
block of such size that the pushrod will fit tightly.
Whittle a depression around the hole on one side
approximately 1/8 inch (3 mm) and large enough
for the grenade to rest in.
4. Place the base of the grenade in the depression in the
wooden block. Securely fasten grenade to block by wrapping
tape (or wire) around entire grenade and block.
Note: Be sure that the tape (or wire) does not cover hole in
block or interfere with the operation of the grenade safety
lever.
5. Drill hole through the center of the second wooden block, so that it will just slide over the outside
of the gun barrel.
6. Drill a hole in the center of the bottom of the tin can the same size as the hole in the block.
7. Attach can to block as shown.
8. Slide the can and block onto the barrel until muzzle passes can open end. Wrap a small piece of
tape around the barrel an inch or two from the end. Tightly wrapped string may be used instead of
tape. Force the can and wooden block forward against the tape so that they are securely held in
place. Wrap tape around the barrel behind the can.
Caution: Be sure that the can is securely fastened to the gun barrel. If the can should become
loose and slip down the barrel after the launcher is assembled, the grenade will explode after
the regular delay time.
9. Remove crimp from a 12 gauge shotgun cartridge
with pen knife. Open cartridge. Pour shot from shell.
Remove wads and plastic liner if present.
10. Empty the propellant onto a piece of paper. Using a
knife, divide the propellant in half. Replace half of the
propellant into the cartridge case.
11. Replace the 12 gauge cardboard wads into cartridge case.
Note: If wads are not available, stuff tissue paper or cotton
into the cartridge case. Pack tightly.
How to Use
Method I – When Ordinary Grenade is Used
1. Load cartridge in gun.
2. Push end of pushrod without the rubber disk into hole in wooden block fastened to grenade.
3. Slowly push rod into barrel until it rests against the cartridge case and grenade is in can. If the
grenade is not in the can, remove rod and cut to proper size. Push rod back into barrel.
4. With can holding safety lever of grenade in place, carefully remove safety pin.
Caution: Be sure that the sides of the can restrain the grenade safety lever. If the safety lever
should be released for any reason, grenade will explode after regular grenade delay time.
5. To fire grenade launcher, rest gun in ground at angle determined by range desired. A 45 degree
angle should give about 150 meters (160 yards).
Method II – When Improvised Pipe Grenade is Used
An improvised pipe grenade (section 2.1) may be launched in a similar manner. No tin can is
needed.
1. Fasten the grenade to the block as shown above with the fuse hole at the end opposite the block.
2. Push end of pushrod into hole in wooden block fastened to grenade.
3. Push rod into barrel until it rests against cartridge case.
4. Load cartridge in gun.
5. Follow step 5 of Method I.
6. Using a fuse with at least a 10 second delay, light the fuse before firing.
7. Fire when the fuse burns to 1/2 its original length.
4.3 Grenade Launcher (57 mm Cardboard
Container)
An improvised method of launching a standard grenade 150 yards (135 meters) or an improvised
grenade 90 yards (81 meters) using a discarded cardboard ammunition container.
Materials Required
Heavy cardboard container with inside diameter of 2-1/2 to 3 inches (5-1/2 to 8 cm) and at least 12
inches (30 cm) long (ammunition container is suitable)
Black powder – 8 grams (124 grains) or less
Safety or improvised fuse (section 6.7)
Grenade (Improvised hand grenade, section 2.1, may be used)
Rag, approximately 30 inches x 24 inches (75 cm x 60 cm)
Paper
Caution: 8 grams of black powder yield the maximum ranges. Do not use more than this
amount. See Improvised Scale, section 7.8, for measuring.
Procedure
Method I – If Standard Grenade is Used
1. Discard top of container. Make small hole in
bottom.
2. Place black powder in paper. Tie end with string
so contents cannot fall out. Place package in
container.
3. Insert rag wadding into container. Pack
tightly with caution.
4. Measure off a length of fuse that will give
the desired delay. Thread this through hole in
bottom of container so that it penetrates into
the black powder package.
Note: If improvised fuse is used, be sure fuse fits loosely through hole in bottom of container.
5. Hold grenade safety lever and carefully
withdraw safety pin from grenade. Insert
grenade into container, lever end first.
Caution: If grenade safety lever should be released for any reason, grenade will explode after
normal delay time.
6. Bury container about 6 inches (15 cm) in the ground at 30° angle, bringing fuse up alongside
container. Pack ground tightly around container.
Caution: The tightly packed dirt helps to hold the tube together during the firing. Do not fire
unless at least the bottom half of the container is buried in solidly packed dirt.
Method II – If Improvised Pipe Hand Grenade is Used
1. Follow step 1 of above procedure.
2. Measure off a piece of fuse at least as long as the cardboard container. Tape one end of this to the
fuse from the blasting cap in the improvised grenade. Be sure ends of fuse are in contact with each
other.
3. Place free end of fuse and black powder on piece of paper. Tie ends with string so contents will
not fall out.
4. Place package in tube. Insert rag wadding. Pack so it fits snugly. Place pipe hand grenade into
tube. Be sure it fits snugly.
5. Insert fuse through hole in end of cardboard
container. Be sure it goes into black powder
package.
Note: Cardboard container may be used for only
one firing.
6. Follow step 6 of Method I.
How to Use
Light fuse when ready to fire.
4.4 Fire Bottle Launcher
A device using 2 items (shotgun and chemical fire bottle) that can be used to start or place a fire 80
yards (72 meters) from launcher.
Materials Required
Standard 12 gauge or improvised shotgun (section 3.2)
Improvised fire bottle (section 5.1)
Tin can, about 4 inches (10 cm) in diameter and 5-1/2 inches (14 cm) high
Wood, about 3 inches x 3 inches x 2 inches (7-1/2 cm x 7-1/2 cm x 5 cm)
Nail, at least 3 inches (7-1/2 cm) long
Nuts and bolts or nails, at least 2-1/2 inches (6-1/2 cm) long
Rag
Paper
Drill
If Standard Shotgun is Used
Hard wood stick, about the same length as shotgun barrel and about 5/8 inch (1-1/2 cm) in
diameter. Stick need not be round.
2 washers (brass, steel, iron, etc.) having outside diameter of 5/8 inch (1-1/2 cm)
One wood screw about 1 inch (2-1/2 cm) long
Rubber disk, 3/4 inch (2 cm) in diameter and 1/4 inch (6 mm) thick. Leather, cardboard, etc. can be
used.
12 gauge shotgun ammunition
If Improvised Shotgun is Used
Fuse, safety or improvised fast burning (section 6.7)
Hard wood stick, about the same length as shotgun barrel and 3/4 inch (2 cm) in diameter
Black powder – 9 grams (135 grains). See section 7.8.
Procedure
Method I – If Improvised Shotgun is Used
1. Drill hole in center of wood block approximately 1
inch (2-1/2 cm) deep. Hole should have approximately
the same diameter as the wooden stick.
2. Drill 2 small holes on opposite sides of the wooden
block. Hole should be large enough for bolts to pass
through.
3. Fasten can to block with nuts and
bolts.
Note: Can may also be securely
fastened to block by hammering several
nails through can and block. Do not drill
holes, and be careful not to split wood.
4. Place wooden stick into hole in
wooden block. Drill small hole (same
diameter as that of 3 inch nail) through
wooden block and through wooden
stick. Insert nail in hole.
5. Crumple paper and place in bottom of can. Place another piece of paper around fire bottle and
insert in can. Use enough paper so that bottle will fit snugly.
6. Place safety fuse and black powder on paper. Tie each end with string.
7. Thread fuse through hole in plug. Place powder package in rear of shotgun. Screw plug finger
tight into coupling.
Note: Hole in plug may have to be enlarged for fuse.
8. Insert rag into front of shotgun. Pick rag against powder package with stick. Use caution.
Method II – If Standard Shotgun is Used
1. Follow steps 1 and 2, Shotgun Grenade Launcher, section 4.2.
2. Follow procedure of Method I, steps 1–5.
3. Follow steps 9, 10, 11, Shotgun Grenade Launcher, section 4.2, using 1/3 of total propellant
instead of 1/2.
4. Load cartridge in gun.
How to Use
1. Insert stick and holder containing chemical fire bottle.
Caution: Do not tilt muzzle downward.
2. Hold gun against ground at 45° angle and light fuse.
Note: Steps 1 and 2, How to Use, same for both standard and improvised shotguns.
Caution: Severe burns may result if bottle shatters when fired. If possible, obtain a bottle
identical to that being used as the fire bottle. Fill about 2/3 full of water and fire as above. If
bottle shatters when fired instead of being launched intact, use a different type of bottle.
4.5 Grenade Launchers
A variety of grenade launchers can be fabricated from metal pipes and fittings. Ranges up to 600
meters (660 yards) can be obtained depending on length of tube, charge, number of grenades, and
angle of firing.
Materials Required
Metal pipe, threaded on one end and approximately 2-1/2 inches (6-1/4 cm) in diameter and 14
inches to 4 feet (35 cm to 119 cm) long depending on range desired and number of grenades used
End cap to fit pipe
Black powder, 15 to 50 grams, approximately 1-1/4 to 4-1/4 tablespoons (section 1.3)
Safety fuse, fast burning improvised fuse
(section 6.7) or
Improvised electric bulb initiator (section 6.1
– automobile light bulb is needed)
Grenade(s) – 1 to 6
Rag(s) – about 30 inches x 30 inches (75 cm x 75 cm) and 20 inches x 20 inches (55 cm x 55 cm)
Drill
String
Note: Examine pipe carefully to be sure there are no cracks or other flaws.
Procedure
Method I – If Fuse is Used
1. Drill small hole through center of end cap.
2. Make small knot near one end of fuse. Place black powder and knotted end of fuse in paper and tie
with string.
3. Thread fuse through hole in end cap and place package in end
cap. Screw end cap onto pipe, being careful that black powder
package is not caught between the threads.
4. Roll rag wad so that it is about 6 inches (15 cm) long
and has approximately the same diameter as the pipe. Push
rolled rag into open-end of pipe until it rests against black
powder package.
5. Hold grenade safety lever in place and carefully withdraw
safety pin.
Caution: If grenade safety lever is released for any reason, grenade will explode after regular
time (4–5 seconds).
6. Holding safety lever in place, carefully push grenade into pipe, lever end first, until it rests against
rag wad.
7. The following table lists various types of grenade launchers and their performance characteristics.
Desired
Range
Number of
Grenades
Launched
Black
Powder
Charge
Pipe
Length
Firing
Angle
250 m 1 15 grams 14 inches 30°
500 m 1 50 grams 48 inches 10°
600 m (a) 1 50 grams 48 inches 30°
200 m 6 (b) 25 grams 48 inches 30°
(a)For this range, an additional delay is required. See section 6.11 and section 6.12.
(b)For multiple grenade launcher, load as shown.
Note: Since performance of different black powder varies, fire several test rounds to determine the
exact amount of powder necessary to achieve the desired range.
How to Use
1. Bury at least 1/2 of the launcher pipe in the ground at desired angle. Open end should face the
expected path of the enemy. Muzzle may be covered with cardboard and a thin layer of dirt and/or
leaves as camouflage. Be sure cardboard prevents dirt from entering pipe.
Note: The 14 inch launcher may be hand held against the ground instead of being buried.
2. Light fuse when ready to fire.
Method II – If Electrical Igniter is Used
Note: Be sure that bulb is in good operating condition.
1. Prepare electric bulb initiator as described in section 6.1.
2. Place electric initiator and black powder charge in paper. Tie ends of paper with string.
3. Follow above procedure, steps 3 to end.
How to Use
1. Follow above How to Use, step 1.
2. Connect leads to firing circuit. Close circuit when ready to fire.
4.6 60 mm Mortar Projectile Launcher
A device to launch 60 mm mortar rounds using a metal pipe 2-1/2 inches (6 cm) in diameter and 4
feet (120 cm) long as the launching tube.
Materials Required
Mortar, projectile (60 mm) and charge increments
Metal pipe 2-1/2 inches (6 cm) in diameter and 4 feet (120 cm) long, threaded on one end
Threaded end cap to fit pipe
Bolt, 1/8 inch (3 mm) in diameter and at least 1 inch (2-1/2 cm) long
Two (2) nuts to fit bolt
File
Drill
Procedure
1. Drill hole 1/8 inch (3 mm) in diameter through center of end
cap.
2. Round off end of bolt with file.
3. Place bolt through hole in end cap. Secure in place with nuts as
illustrated.
4. Screw end cap onto pipe tightly. Tube is now ready for
use.
How to Use
1. Bury launching tube in ground at desired angle
so that bottom of tube is at least 2 feet (60 cm)
under ground. Adjust the number of increments
in rear finned end of mortar projectile. See
following table for launching angle and number
of increments used.
2. When ready to fire, withdraw safety wire
from mortar projectile. Drop projectile into
launching tube, finned end first.
Caution: Be sure bore riding pin is in place in fuse when mortar projectile is dropped into
tube. A live mortar round could explode in the tube if the fit is loose enough to permit the bore
riding pin to come out partway.
Caution: The round will fire as soon as the projectile is dropped into tube. Keep all parts of
body behind the open end of the tube.
Desired
Range
(Yards)
Maximum
Height
Mortar
Will Reach
(Yards)
Required Angle
of Elevation of
Tube (Measured
from Horizontal
Degrees)
Charge –
Number of
Increments
150 25 40 0
300 50 40 1
700 150 40 2
1000 225 40 3
1500 300 40 4
125 75 60 0
300 125 60 1
550 250 60 2
1000 375 60 3
1440 600 60 4
75 100 80 0
150 200 80 1
300 350 80 2
400 600 80 3
550 750 80 4
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 5
Incendiary Devices
5.1 Chemical Fire Bottle
This incendiary bottle is self-igniting on target impact.
Materials Required How Used Source
Sulfuric acid Storage batteries
Material processing
Motor vehicles
Industrial plants
Gasoline Motor fuel Gas station or
motor vehicles
Potassium chlorate Medicine Drug store
Sugar Sweetening foods Food store
Glass bottle with stopper (roughly 1 quart size)
Small bottle or jar with lid
Rag or absorbent paper (paper towels, newspaper)
String or rubber bands
Procedure
1. Sulfuric acid must be concentrated. If battery acid or other dilute acid is used, concentrate it by
boiling until dense white fumes are given off. Container used should be of enamelware or oven
glass.
Caution: Sulfuric acid will burn skin and destroy clothing. If any is spilled, wash it away with
a large quantity of water. Fumes are also dangerous and should not be inhaled.
2. Remove the acid from heat and allow to cool to room temperature.
3. Pour gasoline into the large (1 quart) bottle until it is approximately 2/3 full.
4. Add concentrated sulfuric acid to gasoline slowly until the bottle is filled to within 1 inch to 2
inches from top. Place the stopper on the bottle.
5. Wash the outside of the bottle thoroughly with clear water.
Caution: If this is not done, the fire bottle may be dangerous to handle during use.
6. Wrap a clean cloth or several sheets of absorbent paper
around the outside of the bottle. Tie with string or fasten
with rubber bands.
7. Dissolve 1/2 cup (100 grams) of potassium chlorate and 1/2 cup (100 grams) of sugar in one cup
(250 milliliters) of boiling water.
8. Allow the solution to cool, pour into the small bottle and cap tightly. The cooled solution should
be approximately 2/3 crystals and 1/3 liquid. If there is more liquid than this, pour off excess before
using.
Caution: Store this bottle separately from the other bottle.
How to Use
1. Shake the small bottle to mix contents and
pour onto the cloth or paper around the large
bottle. Bottle can be used wet or after solution
has dried. However, when dry, the sugar –
potassium chlorate mixture in very sensitive to
spark or flame and should be handled
accordingly.
2. Throw or launch the bottle. When the bottle breaks against a hard surface (target) the fuel will
ignite.
5.2 Igniter from Book Matches
This is a hot igniter made from paper book matches for use with molotov cocktail and other
incendiaries.
Materials Required
Paper book matches
Adhesive or friction tape
Procedure
1. Remove the staple(s) from match book and separate
matches from cover.
2. Fold and tape one row of matches.
3. Shape the cover into a tube with striking surface on
the inside and tape. Make sure the folded cover will fit
tightly around the taped match heads. Leave cover
open at opposite end for insertion of the matches.
4. Push the taped matches into the tube until the bottom
ends are exposed about 3/4 inch (2 cm).
5. Flatten and fold the open end of the tube so that it laps
over about 1 inch (2-1/2 cm); tape in place.
Use with Molotov Cocktail
Tape the “match end tab” of the igniter to the
neck of the molotov cocktail.
Grasp the “cover end tab” and pull sharply or
quickly to ignite.
General Use
The book match igniter can be used by itself to ignite flammable liquids, fuse cords and similar
items requiring hot ignition.
Caution: Store matches and completed igniters in moistureproof containers such as rubber or
plastic bags until ready for use. Damp or wet paper book matches will not ignite.
5.3 Mechanically Initiated Fire Bottle
The mechanically initiated fire bottle is an incendiary device which ignites when thrown against a
hard surface.
Materials Required
Glass jar or short neck bottle with a leakproof lid or stopper
“Tin” can or similar container just large enough to fit over the lid of
the jar
Coil spring (compression) approximately 1/2 the diameter of the can
and 1-1/2 times as long
Gasoline
Four (4) “blue tip” matches
Flat stick or piece of metal (roughly 1/2 inch x 1/16 inch x 4 inches)
Wire or heavy twine
Adhesive tape
Procedure
1. Draw or scratch two lines around the can – one 3/4
inch (19 mm) and the other 1-1/4 inch (30 mm) from the
open end.
2. Cut 2 slots on opposite sides of the tin can at the line
farthest from the open end. Make slots large enough for
the flat stick or piece of metal to pass through.
3. Punch 2 small holes just below the rim of the open
end of the can.
4. Tape blue tip matches together in pairs.
The distance between the match heads
should equal the inside diameter of the can.
Two pairs are sufficient.
5. Attach paired matches to second and third
coils of the spring, using thin wire.
6. Insert the end of the spring opposite the
matches into the tin can.
7. Compress the spring until the end with the
matches passes the slot in the can. Pass the
flat stick or piece of metal through slots in
can to hold spring in place. This acts as a
safety device.
8. Punch many closely spaced small holes
between the lines marked on the can to
form a striking surface for the matches. Be
careful not to seriously deform can.
9. Fill the jar with gasoline and cap tightly.
10. Turn can over and place over the jar so that the safety stick
rests on the lid of the jar.
11. Pass wire or twine around the bottom of the jar. Thread
ends through holes in can and bind tightly to jar.
12. Tape wire or cord to jar near the bottom.
How to Use
1. Carefully withdraw flat safety stick.
2. Throw jar at hard surface.
Caution: Do not remove safety stick until ready to throw fire bottle. The safety stick,
when in place, prevents ignition of the fire bottle if it should accidentally be broken.
5.4 Gelled Flame Fuels
Gelled or paste type fuels are often preferable to raw gasoline for use in incendiary devices such as
fire bottles. This type fuel adheres more readily to the target and produces greater heat concentration.
Several methods are shown for gelling gasoline using commonly available materials. The methods
are divided into the following categories based on the major ingredient:
5.4.1 Lye Systems
5.4.2 Lye-Alcohol Systems
5.4.3 Soap-Alcohol System
5.4.4 Egg White Systems
5.4.5 Latex Systems
5.4.6 Wax Systems
5.4.7 Animal Blood Systems
5.4.1 Gelled Flame Fuels — Lye Systems
Lye (also known as caustic soda or sodium hydroxide) can be used in combination with powdered
rosin or castor oil to gel gasoline for use as a flame fuel which will adhere to target surfaces.
Note: This fuel is not suitable for use in the chemical (sulfuric acid) type of fire bottle section 5.1.
The acid will react with the lye and break down the gel.
Materials Required
Parts by
Volume Ingredient How Used Source
60 Gasoline Motor fuel Gas station or
motor vehicle
2 (flake) or
1 (powder) Lye Drain cleaner,
making of soap
Food store
Drug store
15
Rosin
or
Castor Oil
Manufacturing
Paint & varnish
Naval stores
Industry
Medicine Food and drug stores
Procedure
Caution: Make sure that there are no open flames in the area when mixing the flame fuel. No
smoking!
1. Pour gasoline into jar, bottle or other container. (Do not use an aluminum container.)
2. If rosin is in cake form, crush into small pieces.
3. Add rosin or castor oil to the gasoline and stir for about five (5) minutes to mix thoroughly.
4. In a second container (not aluminum) add lye to an equal volume of water slowly with stirring.
Caution: Lye solution can burn skin and destroy clothing. If any is spilled, wash away
immediately with large quantities of water.
5. Add lye solution to the gasoline mix and stir until mixture thickens (about one minute).
Note: The sample will eventually thicken to a very firm paste. This can be thinned, if desired, by
stirring in additional gasoline.
5.4.2 Gelled Flame Fuels — Lye-Alcohol Systems
Lye (also known as caustic soda or sodium hydroxide) can be used in combination with alcohol and
any of several fats to gel gasoline for use as a flame fuel.
Note: This fuel is not suitable for use in the chemical (sulfuric acid) type of fire bottle section 5.1.
The acid will react with the lye and break down the gel.
Materials Required
Parts by
Volume Ingredient How Used Source
60 Gasoline Motor fuel Gas station or
motor vehicles
2 (flake) or
1 (powder) Lye Drain cleaner
Making of soap
Food store
Drug store
3 Ethyl alcohol* Whiskey
Medicine
Liquor store
Drug store
14 Tallow Food
Making of soap Fat rendered by cooking the meat or suet of animals
*Methyl (wood) alcohol or isopropyl (rubbing) alcohol can be substituted for ethyl alcohol, but their
use produces softer gels.
Note: The following can be substituted for the tallow:
a. Wool grease (lanolin) (very good) – fat extracted from sheep wool
b. Castor oil (good)
c. Any vegetable oil (corn, cottonseed, peanut, linseed, etc.)
d. Any fish oil
e. Butter or oleomargarine
It is necessary when using substitutes (c) to (e) to double the given amount of fat and of lye for
satisfactory bodying.
Procedure
Caution: Make sure that there are no open flames in the area when mixing flame fuels. No
smoking!
1. Pour gasoline into bottle, jar or other container. (Do not use an aluminum container.)
2. Add tallow (or substitute) to the gasoline and stir for about 1/2 minute to dissolve fat.
3. Add alcohol to the gasoline mixture.
4. In a separate container (not aluminum) slowly add lye to an equal amount of water. Mixture
should be stirred constantly while adding lye.
Caution: Lye solution can burn skin and destroy clothing. If any is spilled, wash away
immediately with large quantities of water.
5. Add lye solution to the gasoline mixture and stir occasionally until thickened (about 1/2 hour).
Note: The mixture will eventually (1 to 2 days) thicken to a very firm paste. This can be thinned, if
desired, by stirring in additional gasoline.
5.4.3 Gelled Flame Fuels — Soap-Alcohol System
Common household soap can be used in combination with alcohol to gel gasoline for use as a flame
fuel which will adhere to target surfaces.
Materials Required
Parts by
Volume Ingredient How Used Source
36 Gasoline Motor fuel Gas station
Motor vehicles
1 Ethyl alcohol* Whiskey
Medicine
Liquor store
Drug store
20 (powdered)
or 28 (flake) Laundry soap Washing clothes Stores
*Methyl (wood) or isopropyl (rubbing) alcohols can be substituted for the whiskey.
Note: Unless the word “soap” actually appears somewhere on the container or wrapper, a washing
compound is probably a detergent. These can not be used.
Procedure
Caution: Make sure that there are no open flames in the area when mixing flame fuels. No
smoking!
1. If bar soap is used, carve into thin flakes using a knife.
2. Pour alcohol and gasoline into a jar, bottle or other container and mix thoroughly.
3. Add soap powder or flakes to gasoline-alcohol mix and stir occasionally until thickened (about 15
minutes).
5.4.4 Gelled Flame Fuels — Egg White Systems
The white of any bird egg can be used to gel gasoline for use as a flame fuel which will adhere to
target surfaces.
Materials Required
Parts by
Volume Ingredient How Used Source
85 Gasoline
Motor fuel
Stove fuel
Solvent
Gas station
Motor vehicles
14 Egg whites Food
Industrial processes
Food store
Farms
Any one of the following:
1 Table salt Food
Industrial processes
Sea water
Natural brine
Food store
3 Ground coffee Food Coffee plant
Food store
3 Dried tea leaves Food Tea plant
Food store
3 Cocoa Food Cacao tree
Food store
2 Sugar Sweetening foods
Industrial processes
Sugar cane
Food store
1
Saltpeter
(Niter)
(Potassium nitrate)
Pyrotechnics
Explosives
Matches
Medicine
Natural deposits
Drug store
1 Epsom salts
Medicine
Mineral water
Industrial processes
Natural deposits
Kieserite
Drug store
Food store
2 Washing soda
(Sal soda)
Washing cleaner
Medicine
Photography
Food store
Drug store
Photo supply store
1-1/2 Baking Soda
Baking
Manufacture of:
Beverages,
Mineral waters
and Medicines
Food store
Drug store
1-1/2 Aspirin Medicine Drug store
Food store
Procedure
Caution: Make sure that there are no open flames in the area when mixing flame fuels. No
smoking!
1. Separate egg white from yolk. This can be done by breaking the egg into a dish and carefully
removing the yolk with a spoon.
Note: Do not get the yellow egg yolk mixed into the egg white. If egg yolk gets into the egg
white, discard the egg.
2. Pour egg white into a jar, bottle, or other container and add gasoline.
3. Add the salt (or other additive) to the mixture and stir occasionally until gel forms (about 5 to 10
minutes).
Note: A thicker gelled flame fuel can be obtained by putting the capped jar in hot (65°C) water for
about 1/2 hour and then letting them cool to room temperature. (Do not heat the gelled fuel
containing coffee.)
5.4.5 Gelled Flame Fuels — Latex Systems
Any milky white plant fluid is a potential source of latex which can be used to gel gasoline.
Materials Required
Ingredient How Used Source
Gasoline Motor fuel
Solvent
Gas station
Motor vehicle
Latex,
commercial or natural
Paints
Adhesives
Natural from tree or plant
Rubber cement
One of the following acids:
Acetic acid
(Vinegar)
Salad dressing
Developing film
Food stores
Fermented apple cider
Photographic supply
Sulfuric acid
(Oil of vitriol)
Storage batteries
Material processing
Motor vehicles
Industrial plants
Hydrochloric acid
(Muriatic acid)
Petroleum wells
Pickling and metal cleaning
Industrial processes
Hardware store
Industrial plants
Note: If acids are not available, use acid salt (alum, sulfates and chlorides other than sodium or
potassium). The formic acid from crushed red ants can also be used.
Procedure
Caution: Make sure that there are no open flames in the area when mixing flame fuels. No
smoking!
1. With commercial rubber latex:
Place 7 parts by volume of latex and 92 parts by volume of gasoline in bottle. Cap bottle and
shake to mix well.
a.
b. Add 1 part by volume vinegar (or other acid) and shake until gel forms.
Caution: Concentrated acids will burn skin and destroy clothing. If any is spilled, wash away
immediately with large quantities of water.
2. With natural latex:
Natural latex should form lumps as it comes from the plant. If lumps do not form, add a small
amount of acid to the latex.
a.
b. Strain off the latex lumps and allow to dry in air.
Place 20 parts by volume of latex in bottle and add 80 parts by volume of gasoline. Cover
bottle and allow to stand until a swollen gel mass is obtained (2 to 3 days).
c.
5.4.6 Gelled Flame Fuels — Wax Systems
Any of several common waxes can be used to gel gasoline for use as a flame fuel which will adhere
to target surfaces.
Materials Required
Parts by
Volume Ingredient How Used Source
80 Gasoline Motor fuel
Solvent
Gas station
Motor vehicles
Any one of the following:
20
Ozocerite
Mineral wax
Fossil wax
Ceresin wax
Leather polish
Sealing wax
Candles
Crayons
Waxed paper
Textile sizing
Natural deposits
General stores
Department store
Beeswax
Furniture and floor waxes
Artificial fruit and flowers
Lithographing
Wax paper
Textile finish
Candles
Honeycomb of bee
General store
Department store
Bayberry wax
Myrtle wax
Candles
Soaps
Leather polish
Medicine
Natural form
Myrica berries
General store
Department store
Drug store
Procedure
1. Obtaining wax from natural sources: Plants and berries are potential sources of natural waxes.
Place the plants and/or berries in boiling water. The natural waxes will melt. Let the water cool. The
natural waxes will form a solid layer on the water surface. Skim off the solid wax and let it dry. With
natural waxes which have suspended matter when melted, screen the wax through a cloth.
2. Melt the wax and pour into jar or bottle which has been placed in a hot water bath.
3. Add gasoline to the bottle.
4. When wax has completely dissolved in the gasoline, allow the water bath to cool slowly to room
temperature.
Note: If a gel does not form, add additional wax (up to 40% by volume) and repeat the above steps.
If no gel forms with 40% wax, make a lye solution by dissolving a small amount of lye (sodium
hydroxide) in an equal amount of water. Add this solution (1/2% forms by volume) to the gasoline
wax mix and shake bottle until a gel forms.
5.4.7 Gelled Flame Fuels — Animal Blood Systems
Animal blood can be used to gel gasoline for use as a flame fuel which will adhere to target surfaces.
Materials Required
Parts by
Volume Ingredient How Used Source
68 Gasoline Motor fuel
Solvent
Gas station
Motor vehicles
30 Animal blood serum Food
Medicine
Slaughter House
Natural habitat
Any one of the following:
2
Salt Food
Industrial processes
Sea Water
Natural brine
Food store
Ground Coffee
Food
Caffeine source
Beverage
Coffee plant
Food store
Dried tea leaves Food
Beverage
Tea plant
Food store
Sugar Sweetening foods
Industrial processes
Sugar cane
Food store
Lime
Mortar
Plaster
Medicine
Ceramics
Steel making
Industrial processes
From calcium carbonate
Hardware store
Drug store
Garden supply store
Baking soda
Baking
Beverages
Medicine
Industrial processes
Food store
Drug store
Epsom salts
Medicine
Mineral water
Industrial processes
Drug store
Natural deposits
Food store
Procedure
1. Preparation of animal blood serum:
a. Slit animal's throat by jugular vein. Hang upside down to drain.
Place coagulated (lumpy) blood in a cloth or on a screen and catch the red fluid (serum)
which drains through.
b.
c. Store in cool place if possible.
Caution: Do not get aged animal blood or the serum into an open cut. This can cause infections.
2. Pour blood serum into jar, bottle, or other container and add gasoline.
3. Add the salt (or other additive) to the mixture and stir until a gel forms.
5.5 Acid Delay Incendiary
This device will ignite automatically after a given time delay.
Materials Required
Small jar with cap
Cardboard
Adhesive tape
Potassium chlorate
Sugar
Sulfuric acid (battery acid)
Rubber sheeting (automotive inner tube)
Procedure
1. Sulfuric acid must be concentrated. If battery acid or other dilute acid is used, concentrate it by
boiling. Container used should be of enamelware or oven glass. When dense white fumes begin to
appear, immediately remove the acid from heat and allow to cool to room temperature.
Caution: Sulfuric acid will burn skin and destroy clothing. If any is spilled, wash it away with
a large quantity of water. Fumes are also dangerous and should not be inhaled.
2. Dissolve one part by volume of potassium chlorate and one part by volume of sugar in two parts
by volume of boiling water.
3. Allow the solution to cool. When crystals settle, pour off and discard the liquid.
4. Form a tube from cardboard just large enough to
fit around the outside of the jar and 2 to 3 times the
height of the jar. Tape one end of the tube closed.
5. Pour wet potassium
chlorate-sugar crystals
into the tube until it is
about 2/3 full. Stand the
tube aside to dry.
6. Drill a hole through the cap of the jar about 1/2
inch (1-1/4 cm) in diameter.
7. Cut a disc from rubber sheet so that it just
fits snugly inside the lid of the jar.
8. Partly fill jar with water, cover with rubber disc and cap tightly with the drilled lid. Invert bottle
and allow to stand for a few minutes to make sure that there are no leaks. This is extremely
important.
9. Pour water from jar and fill about 1/3 full with
concentrated sulfuric acid. Replace the rubber disc and cap
tightly.
Important: Wash outside of jar thoroughly with clear water. If this is not done, the jar may be
dangerous to handle during use.
How to Use
1. Place the tube containing the sugar chlorate crystals on an incendiary or flammable material taped
end down.
2. Turn the jar of sulfuric acid cap end down and slide it into the open end of the tube.
After a time delay, the acid will eat through the rubber disc and ignite the sugar chlorate mix. The
delay time depends upon the thickness and type of rubber used for the disc. Before using this device,
tests should be conducted to determine the delay time that can be expected.
Note: A piece of standard automobile inner tube (about 1/32 inch thick) will provide a delay time of
approximately 45 minutes.
5.6 Improvised White Flare
An improvised white flare can be made from potassium nitrate, aluminum powder and shellac. It has
a time duration of approximately 2 minutes.
Materials Required Source
Potassium nitrate
Field grade (section 1.2)
Drug Store
Aluminum powder (bronzing) Hardware or paint store
Shellac Hardware or paint store
Quart jar with lid
Fuse, 15 inches long
Wooden rod, 1/4 inch diameter
Tin can, 2-1/2 inch diameter x 5 inches long
Flat window screen
Wooden block
Note: All of the above dimensions are approximate.
Procedure
1. Place the potassium nitrate crystals on
the screen. Rub the material back and
forth against the screen mesh with the
wooden block until the nitrate is
granulated into a powder.
2. Measure 21 tablespoons of the powdered
nitrate into a quart jar. Add 21 tablespoons of
the aluminum powder to the nitrate.
3. Place lid on the jar and shake ingredients vigorously until
well mixed.
4. Add 12 tablespoons of shellac to the mixture and stir with
the wooden rod. Store mixture until ready for step 7.
5. Knot one end of the fuse.
6. Wrap the knotted end of the fuse once around the inside
bottom of the can with the knot at the center. Then, run the
rest of the fuse out the center top of the can.
7. Pour the mixture in the can and around the fuse.
8. Store flare mixture away from heat and flame until ready for use, but no longer than 3 weeks.
5.7 Improvised Iron Oxide
Iron oxide can be made from steel wool. It is used in the preparation of Improvised Yellow Flare
(section 5.8), Improvised White Smoke Munition (section 5.9) and Improvised Black Smoke
Munition (section 5.10).
Materials Required Source
Steel wool (without soap), approximately 16 large
pads Hardware or general store
Smoke pipe, approximately 4 feet long x 12 inches in
diameter, 1/16 inch thick Hardware store
Vacuum cleaner Hardware store
Electrical source (110 V, A.C.) Modern commercial and domestic buildings
Window screen
Newspaper
2 containers
Wooden blocks, if necessary
Flame source (matches, lighter, etc.)
Procedure
1. Separate a handful of steel wool into a fluffy
ball approximately 12 inches in diameter and
place into one end of the smoke pipe.
2. Place the pipe on a level, nonflammable surface. Steady the pipe, using wooden blocks if
necessary.
3. Ignite the steel wool with the flame source and, with the vacuum cleaner, force a stream of air
through the flame.
Note: The forced air provided by the vacuum cleaner aids in the burning of the steel wool. If the
steel wool does not completely burn, more separation of the wool is needed.
4. When the steel wool has almost completely burned, add another handful of the fluffed steel wool
(step 1).
5. Continue adding to the flame a single handful of fluffed wool at a time until a sufficient amount of
iron oxide granules have accumulated in the stove pipe.
6. Place a window screen on a sheet of newspaper. Pour the burned steel wool granules onto the
window screen and shake screen until all the fine particles have passed through.
7. Discard those particles on the newspaper which are fibrous and unburned.
8. Save the particles which were too large to pass through the screen in one of the containers for
future burning.
9. Store particles of iron oxide (left on newspaper) in another container until ready for use.
5.8 Improvised Yellow Flare
A yellow flare can be made from shellac, sulfur, aluminum powder, iron oxide and baking soda. It
can be used either for signaling or lighting up a dark area.
Materials Required Source
Shellac Hardware or paint store
Sulfur Drug or agricultural supply store
Aluminum powder (bronzing) Hardware or paint store
Black iron oxide Section 5.7
Sodium bicarbonate (baking soda) Food store
Improvised white flare mix Section 5.6
Window Screen
Wooden rod or stick
Tablespoon
Quart jar with lid
Newspaper
Wooden block
Fuse, 15 inches long
Tin can, 2-1/2 inches diameter x 5 inches long
Aluminum foil
Flame source (matches, lighter, etc.)
Procedure
1. Measure 6 firm level tablespoons of sulfur
into a quart jar.
2. Add 7 firm level tablespoons of sodium bicarbonate to the sulfur.
3. Add 2 heaping tablespoons of black iron oxide.
4. Place the lid on the quart jar and shake ingredients 10 times.
5. Place the mixed ingredients on
the window screen.
6. Mix ingredients
thoroughly by forcing
material through screen
mesh onto the newspaper,
using a wooden rod or stick.
Repeat screening 2 times to
insure thorough mixing.
7. Pour mixed ingredients back into the jar.
8. Add 20 heaping tablespoons of aluminum
powder to the ingredients.
9. Add while stirring the least amount of shellac
needed to moisten mixture.
10. Force moistened mix through screen mesh onto the newspaper as in step 6. Store mixture until
ready for step 14.
11. Measure one heaping teaspoon of white flare mix onto a 4 inch square piece of aluminum foil.
12. Knot one end of the fuse and place the knot
onto the mix.
13. Fold the corners of the foil tightly around the fuse.
14. Now place the yellow flare mix into
the can.
15. Place the fused white flare mix in the foil below the
surface of the yellow flare mix in the can.
16. Light the fuse with the flame source when ready.
5.9 Improvised White Smoke Munition
A white smoke munition can be made from sulfur, potassium nitrate, black powder, aluminum
powder, iron oxide and carbon tetrachloride. It can be used either for signaling or screening.
Materials Required Source
Sulfur Drug or agricultural supply store
Potassium nitrate (saltpeter) Drug store or section 1.2
Improvised black powder Section 1.3
Aluminum powder (bronzing) Hardware or paint store
Black iron oxide Section 5.7
Carbon tetrachloride Hardware or paint store
Improvised white flare mix Section 5.6
Tablespoon
Wooden rod or stick
Newspaper
Quart Jar with lid
Window screen
Fuse, 15 inches long
Tin can, 2-1/2 inches diameter x 5 inches long
Flame source (matches, lighter, etc.)
Procedure
1. Measure 3 level tablespoons of powdered dry
sulfur into the quart jar.
2. Add 4 level tablespoons of powdered dry potassium nitrate to the sulfur.
Note: it may be necessary to crush the potassium nitrate crystals and sulfur to obtain an accurate
measure in tablespoon.
3. Add 2 heaping tablespoons of black iron oxide.
4. Place all ingredients on the
window screen.
5. Mix ingredients thoroughly
by sieving them onto the
newspaper. Repeat screening 3
times to insure thorough
mixing.
6. Pour mixed ingredients back into the jar.
7. Screw lid onto the quart jar and shake vigorously
until the ingredients are evenly mixed.
8. Remove lid from quart jar and add 15 heaping
tablespoons of aluminum powder (bronzing) to the
ingredients. Mix thoroughly with wooden rod or
stick.
Note: If the white smoke mixture is not for immediate use, screw the lid back onto the jar tightly and
store until ready for use. If mixture is for immediate use, continue with the following steps.
9. Wet mix the ingredients to a paste consistency with
carbon tetrachloride.
Caution: Fumes of carbon tetrachloride are
hazardous. Perform step 10 in a well ventilated area.
10. Add 1/2 cup of
black powder to the
ingredients and
carefully mix with
wooden rod or
stick.
How to Use
1. Measure one heaping teaspoon of white flare mix onto a 4 inch square piece of aluminum foil.
2. Knot one end of the fuse and place the knot
into the mix.
3. Fold the corners of the foil tightly around the fuse.
4. Now place the white smoke mix into the
can.
5. Place the fused white flare mix in the foil below the
surface of the white smoke mix in the can.
6. Light the fuse with the flame source when ready.
5.10 Improvised Black Smoke Munition
A black smoke munition can be made from sulfur, aluminum powder, iron oxide, moth crystals and
carbon tetrachloride. It can be used either for signaling or screening.
Materials Required Source
Sulfur Drug store
Aluminum powder (bronzing) Paint or hardware store
Improvised black iron oxide Section 5.7
Moth crystals (paradichlorobenzene) Hardware store
Carbon tetrachloride Paint or hardware store
Improvised white flare mix Section 5.6
Table salt Food store
Teaspoon
Tablespoon
Quart jar or container
Wooden rod or stick
Wooden block
Window screen
Newspaper
Fuse, 15 inches long
Tin can, 2-1/2 inch diameter x 5 inches long
Aluminum foil
Flame source (matches, lighter, etc.)
Procedure
1. Measure 3 level teaspoons of sulfur into a quart jar.
2. Add 1 heaping tablespoon of improvised iron oxide to the sulfur.
3. Add 2 level teaspoons of table salt.
4. Crush 5 heaping tablespoons of moth crystal
into a fine powder using a wooden block.
5. Add 4 heaping tablespoons of powdered moth crystals to the other ingredients in jar.
6. Place all ingredients on the
window screen.
7. Mix ingredients
thoroughly by
sieving them onto the
newspaper. Repeat
screening 3 times to
insure thorough
mixing.
8. Pour mixed ingredients back
into the jar.
9. Add 12 heaping tablespoons of aluminum powder
to the ingredients and mix by stirring with wooden
rod or stick.
10. Just before use as a black smoke, wet mix the
above ingredients to a paste consistency with
carbon tetrachloride.
Caution: Fumes of carbon tetrachloride are hazardous. Perform step 10 in a well ventilated
area.
How to Use
1. Measure one heaping teaspoon of white flare mix onto a 4 inch square piece of aluminum foil.
2. Knot one end of the fuse and place the knot into
the mix.
3. Fold the corners of the foil tightly around the fuse.
4. Now place the black smoke mix into the
can.
5. Place the fused white flare mix in the foil below the
surface of the black smoke mix in the can.
6. Light the fuse with the flame source when ready.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 6
Fuses, Detonators & Delay Mechanisms
6.1 Electric Bulb Initiator
Mortars, mines and similar weapons often make use of electric initiators. An electric initiator can be made
using a flash light or automobile electric light bulb.
Materials Required
Electric light bulb and mating socket
Cardboard or heavy paper
Black powder
Adhesive tape
Procedure
Method I
1. Break the glass of the electric light bulb. Take care
not to damage the filament. The initiator will not work
if the filament is broken. Remove all glass above the
base of the bulb.
2. Form a tube 3 to 4 inches long from cardboard or heavy
paper to fit around the base of the bulb. Join the tube with
adhesive tape.
3. Fit the tube to the bulb base and tape in place.
Make sure that the tube does not cover that portion
of the bulb base that fits into the socket.
4. If no socket is available for connecting the
initiator to the firing circuit, solder the connecting
wires to the bulb base.
Caution: Do not use a hot soldering iron on the
completed igniter since it may ignite the black
powder.
5. Fill the tube with black powder and tape the
open end of the tube closed.
Method II
If the glass bulb (electric light) is large enough to hold the black powder, it can be used as the container.
Procedure
1. File a small hole in the top of the bulb.
2. Fill the bulb with black powder and tape the hole
closed.
6.2 Fuse Igniter from Book Matches
A simple, reliable fuse igniter can be made from paper book matches.
Materials Required
Paper book matches
Adhesive or friction tape
Fuse cord (improvised or commercial)
Pin or small nail
Procedure
1. Remove the staple(s) from match book and separate
matches from cover.
2. Cut fuse cord so that inner core is exposed.
3. Tape exposed end of fuse cord in center of one
row of matches.
4. Fold matches over fuse and tape.
5. Shape the cover into a tube with the striking surface on
the inside and tape. Make sure the edges of the cover at
the striking end are butted. Leave cover open at opposite
end for insertion of the matches.
6. Push the taped matches with fuse cord into the tube until the
bottom ends of the matches are exposed about 3/4 inch (2 cm).
7. Flatten and fold the open end of the tube so that it
laps over about 1 inch (2-1/2 cm); tape in place.
8. Push pin or small nail through matches and fuse cord.
Bend end of pin or nail.
Method of Use
To light the fuse cord, the igniter is held by both hands and pulled
sharply or quickly.
Caution: Store matches and completed fuse igniters in moistureproof containers such as plastic or
rubber type bags until ready for use. Damp or wet paper book matches will not ignite. Fuse lengths
should not exceed 12 inches (30 cm) for easy storage. These can be spliced to main fuses when
needed.
6.3 Delay Igniter from Cigarette
A simple and economical time delay can be made with a common cigarette.
Materials Required
Cigarette
Paper match
String (shoelace or similar cord)
Fuse cord (improvised or commercial)
Procedure
1. Cut end of fuse cord to expose inner core.
2. Light cigarette in normal fashion. Place a paper match so that the head is over exposed end of fuse cord
and tie both to the side of the burning cigarette with string.
3. Position the burning cigarette with fuse so that it burns freely. A suggested method is to hang the delay
on a twig.
Note:
Common dry cigarettes burn about 1 inch every 7 or 8 minutes in still air. If the fuse cord is placed 1 inch
from the burning end of a cigarette a time delay of 7 or 8 minutes will result.
Delay time will vary depending upon type of cigarette, wind, moisture, and other atmospheric conditions.
To obtain accurate delay time, a test run should be made under “use” conditions.
6.4 Watch Delay Timer
A time delay device for use with electrical firing circuits can be made by using a watch with a plastic
crystal.
Materials Required
Watch with plastic crystal
Small clean metal screw
Battery
Connecting wires
Drill or nail
Procedure
1. If watch has a sweep or large second hand, remove it. If delay time of more than one hour is required,
also remove the minute hand. If hands are painted, carefully scrape paint from contact edge with knife.
2. Drill a hole through the crystal of the watch or
pierce the crystal with a heated nail. The hole must
be small enough that the screw can be tightly
threaded into it.
3. Place the screw in the hole and turn down as far as
possible without making contact with the face of the
watch. If screw has a pointed tip, it may be necessary to
grind the tip flat.
If no screw is available, pass bent stiff wire through the hole and tape to the crystal.
Important: Check to make sure hand of watch cannot pass screw or wire without contacting it.
How to Use
1. Set the watch so that a hand will reach the screw or wire at the time you want the firing circuit
completed.
2. Wind the watch.
3. Attach a wire from the case of the watch to one terminal of the battery.
4. Attach one wire from an electric initiator (blasting cap, squib, or alarm device) to the screw or wire on
the face of the watch.
5. After thorough inspection is made to assure that the screw or the wire connected to it is not touching the
face or case of the watch, attach the other wire from the initiator to the second terminal of the battery.
Caution: Follow step 5 carefully to prevent premature initiation.
6.5 No-Flash Fuse Igniter
A simple no-flash fuse igniter can be made from common pipe fittings.
Materials Required
1/4 inch (6 mm) pipe cap
Solid 1/4 inch (6 mm) pipe plug
Flat head nail about 1/16 inch (1-1/2 mm) in diameter
Hand drill
Common “strike-anywhere” matches
Adhesive tape
Procedure
1. Screw the pipe plug tightly into the pipe cap.
2. Drill hole completely through the center of the plug and cap large
enough that the nail fits loosely.
3. Enlarge the hole in the plug except for the last 1/8
inch (3 mm) so that the fuse cord will just fit.
4. Remove the plug from the cap and push the flat head nail
through the hole in the cap from the inside.
5. Cut the striking tips from approximately 10 “strike-anywhere” matches. Place match tips inside pipe
cap and screw plug in finger tight.
How to Use
1. Slide the fuse cord into the hole in the
pipe plug.
2. Tape igniter to fuse cord.
3. Tap point of nail on a hard surface to ignite the fuse.
6.6 Dried Seed Timer
A time delay device for electrical firing circuits can be made using the principle of expansion of dried
seeds.
Materials Required
Dried peas, beans or other dehydrated seeds
Wide mouth glass jar with nonmetal cap
Two screws or bolts
Thin metal plate
Hand drill
Screwdriver
Procedure
1. Determine the rate of rise of the dried seeds selected. This is necessary to determine delay time of the
timer.
a. Place a sample of the dried seeds in the jar and cover with water.
Measure the time it takes for the seeds to rise a given height. Most dried seeds increase 50% in one
to two hours.
b.
2. Cut a disc from thin metal plate. Disc should fit
loosely inside the jar.
Note: If metal is painted, rusty or otherwise
coated, it must be scraped or sanded to obtain a
clean metal surface.
3. Drill two holes in the cap of the jar about 2 inches
apart. Diameter of holes should be such that screws or
bolts will thread tightly into them. If the jar has a metal
cap or no cap, a piece of wood or plastic (not metal)
can be used as a cover.
4. Turn the two screws or bolts through the holes
in the cap. Bolts should extend about one inch
(2-1/2 cm) into the jar.
Important: Both bolts must extend the
same distance below the container cover.
5. Pour dried seeds into the container. The level will depend upon the previously measured rise time and
the desired delay.
6. Place the metal disc in the jar on top of the
seeds.
How to Use
1. Add just enough water to completely cover the seeds and place the cap on the jar.
2. Attach connecting wires from the firing circuit
to the two screws on the cap.
Expansion of the seeds will raise the metal disc until it contacts the screws and closes the circuit.
6.7 Fuse Cords
These fuse cords are used for igniting propellants and incendiaries or, with a nonelectric blasting cap, to
detonate explosives.
6.7.1 Fuse Cords — Fast Burning Fuse
The burning rate of this fuse is approximately 40 inches (100 cm) per minute.
Materials Required
Soft cotton string
Fine black powder or
Potassium nitrate (saltpeter) 25 parts
Charcoal 3 parts
Sulfur 2 parts
Piece of round stick
Two pans or dishes
Procedure
1. Moisten fine black powder to form a paste or prepare a substitute as follows:
a. Dissolve potassium nitrate in an equal amount of water.
Pulverize charcoal by spreading thinly on a hard surface and rolling the round stick over it to crush
to a fine powder.
b.
c. Pulverize sulfur in the same manner.
d. Dry mix sulfur and charcoal.
e. Add potassium nitrate solution to the dry mix to obtain a thoroughly wet paste.
2. Twist or braid three strands of cotton string
together.
3. Rub paste mixture into twisted string with
fingers and allow to dry.
4. Check actual burning rate of fuse by measuring the time it takes for a known length to burn. This is
used to determine the length needed for a desired delay time. If 5 inches (12-1/2 cm) burns for 6 seconds,
50 inches (125 cm) of fuse cord will be needed to obtain a one minute (60 second) delay time.
6.7.2 Fuse Cords — Slow Burning Fuse
The burning rate of this fuse in approximately 2 inches (5 cm) per minute.
Materials Required
Cotton string or 3 shoelaces
Potassium nitrate or potassium chlorate
Granulated sugar
Procedure
1. Wash cotton string or shoelaces in hot soapy water; rinse in fresh water.
2. Dissolve 1 part potassium nitrate or potassium chlorate and 1 part granulated sugar in 2 parts hot water.
3. Soak string or shoelaces in solution.
4. Twist or braid three strands of string together and allow to dry.
5. Check actual burning rate of the fuse by measuring the time it takes for a known length to burn. This is
used to determine the length needed for the desired delay time. If 2 inches (5 cm) burns for 1 minute, 10
inches (25 cm) will be needed to obtain a 5 minute delay.
Note: The last few inches of this cord (the end inserted in the material to be ignited) should be coated with
the fast burning black powder paste if possible. This must be done when the fuse is used to ignite a
blasting cap.
Remember: The burning rate of either of these fuses can vary greatly. Do not use for ignition until
you have checked their burning rate.
6.8 Clothespin Time Delay Switch
A 3 to 5 minute time delay switch can be made from the clothespin switch (section 7.1) and a cigarette.
The system can be used for initiation of explosive charges, mines, and booby traps.
Materials Required
Spring type clothespin
Solid or stranded copper wire about 1/16 inch (2 mm) in diameter (field or bell wire is suitable)
Fine string, about 6 inches in length
Cigarette
Knife
Procedure
1. Strip about 4 inches (10 cm) of insulation from the ends of 2
copper wires. Scrape copper wires with pocket knife until
metal is shiny.
2. Wind one scraped wire tightly on one jaw of the clothespin,
and the other wire on the other jaw so that the wires will be in
contact with each other when the jaws are closed.
3. Measuring from tip of cigarette measure a length of cigarette that will
correspond to the desired delay time. Make a hole in cigarette at this
point, using wire or pin.
Note: Delay time may be adjusted by varying the burning length of the cigarette. Burning rate in still air is
approximately 7 minutes per inch (2.5 cm). Since this rate varies with environment and brand of cigarette,
it should be tested in each case if accurate delay time is desired.
4. Thread string through hole in cigarette.
5. Tie string around rear of clothespin, 1/8 inch or less from
end. The clothespin may be notched to hold the string in
place.
Note: The string must keep the rear end of the clothespin closed so that the jaws stay open and no contact
is made between the wire.
How to Use
Suspend the entire system vertically with the cigarette tip
down. Light tip of cigarette. Switch will close and initiation
will occur when the cigarette burns up to and through the
string.
Note: Wires to the firing circuit must not be pulled taut when the switch is mounted. This could prevent
the jaws from closing.
6.9 Time Delay Grenade
This delay mechanism makes it possible to use an ordinary grenade as a time bomb.
Materials Required
Grenade
Fuse cord
Important: Fuse cord must be the type that burns completely. Slow burning improvised fuse cord
(section 6.7) is suitable. Safety fuse is not satisfactory, since its outer covering does not burn.
Procedure
1. Bend end of safety lever upward to form a hook. Make a
single loop of fuse cord around the center of the grenade
body and safety lever. Tie a knot of the nonslip variety at
the safety lever.
Note: The loop must be tight enough to hold the safety lever in position when the pin is removed.
2. Measuring from the knot along the free length of the fuse cord, measure off a length of fuse cord that
will give the desired delay time. Cut off the excess fuse cord.
How to Use
1. Place hand around grenade and safety lever so safety
lever is held in place. Carefully remove pin.
2. Emplace grenade in desired location while holding grenade and safety lever.
3. Very carefully remove hand from grenade and safety lever, making sure that the fuse cord holds the
safety lever in place.
Caution: If loop and knot of fuse cord do not hold for any reason and the safety lever is released,
the grenade will explode after the regular delay time.
4. Light free end of fuse cord.
6.10 Can-Liquid Time Delay
A time delay device for electrical firing circuits can be made using a can and liquid.
Materials Required
Can
Liquid (water, gasoline, etc.)
Small block of wood or any material that will float on the liquid used
Knife
2 pieces of solid wire, each piece 1 foot (30 cm) or longer
Procedure
1. Make 2 small holes at opposite sides of the can very close to the top.
2. Remove insulation from a long piece of wire for a distance a
little greater than the diameter of the can.
3. Secure the wire in place across the top of the can by threading
it through the holes and twisting in place, leaving some slack.
Make loop in center or wire. Be sure a long piece of wire
extends from one end of the can.
4. Wrap a piece of insulated wire around the block of wood. Scrape insulation from a small section of this
wire and bend as shown so that wire contacts loop before wood touches bottom of container. Thread this
wire through the loop of bare wire.
5. Make a very small hole (pinhole) in the side of the container. Fill container with a quantity of liquid
corresponding to the desired delay time. Since the rate at which liquid leaves the can depends upon
weather conditions, liquid used, size of hole, amount of liquid in the container, etc., determine the delay
time for each individual case. Delays from a few minutes to many hours are possible. Vary time by
adjusting liquid level, type of liquid (water, oil) and hole size.
How to Use
1. Fill can with liquid to the same level as during experimental run (step 5 above). Be sure that wooden
block floats on liquid and that wire is free to move down as liquid leaves container.
2. Connect wires to firing circuit.
Note: A long term delay can be obtained by placing a volatile liquid (gasoline, ether, etc.) in the can
instead of water and relying on evaporation to lower the level. Be sure that the wood will float on the
liquid used. Do not make pinhole in side of can!
6.11 Short Term Time Delay for Grenade
A simple modification can produce delays of approximately 12 seconds for grenades when fired from
Grenade Launchers (section 4.5).
Materials Required
Grenade
Nail
Knife
May not be needed
Pliers
Safety fuse
Note: Any safety or improvised fuse may be used. However, since different time delays will result,
determine the burning rate of the fuse first.
Procedure
1. Unscrew fuse mechanism from body of grenade
and remove. Pliers may have to be used.
2. Carefully cut with knife or break off detonator at
crimp and save for later use.
Caution: If detonator is cut or broken below the crimp, detonation may occur and severe injuries
could result.
3. Remove safety pin pull ring and lever, letting striker hit
the primer. Place fuse mechanism aside until delay fuse
powder mix in mechanism is completely burned.
4. Remove pin, spring, and striker.
5. Remove primer from fuse mechanism by pushing
nail through bottom end of primer hole and tapping
with hammer.
6. Insert safety fuse through top of primer hole. Enlarge
hole if necessary. The fuse should go completely through
the hole.
7. Insert fuse into detonator and tape it securely to
modified fuse mechanism.
Note: Be sure that fuse rests firmly against detonator at all times.
8. Screw modified fuse mechanism back into grenade. Grenade is now ready for use.
Note: If time delay is used for Improvised Grenade
Launchers (section 4.5):
1. Wrap tape around safety fuse.
2. Securely tape fuse to grenade.
3. Load grenade in launcher. Grenade will explode in
approximately 12 seconds after safety fuse burns up to
bottom of grenade.
6.12 Long Term Time Delay for Grenade
A simple modification can produce delays of approximately 20 seconds for grenades when fired from
Grenade Launchers (section 4.5).
Materials Required
Grenade
Nail
“Strike-anywhere” matches, 6 to 8
Pliers (may not be needed)
Knife or sharp cutting edge
Piece of wood
Safety fuse
Note: Any safety or improvised fuse may be used. However, since different time delays will result,
determine the burning rate of the fuse first.
Procedure
1. Unscrew fuse mechanism from body of grenade
and remove. Pliers may have to be used.
2. Insert nail completely through safety hole (hole over primer).
3. Carefully remove safety pin pull ring and lever, and
allow striker to hit nail.
Caution: If for any reason, striker should hit primer instead of nail, detonator will explode after
(4–5 second) delay time.
4. Push pin out and remove spring and striker. Remove nail.
5. Carefully remove top section of fuse mechanism from bottom section by unscrewing. Pliers may have
to be used.
Caution: Use extreme care—sudden shock may set off detonator.
6. Fire primer by hitting nail placed against top of it. Remove fired primer (same as step 5 of section
6.11).
Caution: Do not hold assembly in your hand during above operation, as serious burns may result.
7. Scrape delay fuse powder with a sharpened stick. Loosen about 1/4 inch (6 mm) of powder in cavity.
8. Cut off tips (not whole head) of 6 "strike-anywhere" matches with sharp cutting edge. Drop them into
delay fuse hole.
9. Place safety fuse in delay fuse hole so that it is flush
against the match tips.
Important: Be sure fuse remains flush against
the match tips at all times.
10. Thread fuse through primer hole. Enlarge hole if
necessary. Screw modified fuse mechanism back
together. Screw combination back into grenade.
Grenade modification is now ready for use. Light fuse
when ready to use.
Note: If time delay is used for Improvised Grenade
Launchers (section 4.5):
1. Wrap tape around safety fuse.
2. Securely tape fuse to grenade.
3. Load grenade in launcher. Grenade will explode in
approximately 20 seconds after safety fuse burns up to
bottom of grenade.
6.13 Detonator
Detonators (blasting caps) can be made from a used small arms cartridge case and field manufactured
explosives. Detonators are used to initiate secondary high explosives (C4, TNT, etc.).
Materials Required Source
Primary explosive See table
Booster explosive
RDX (section 1.15) or picric acid (section
1.21)
Improvised scale Section 7.8
Used cartridge case .22 caliber or larger
Fuse, 12 inches long
Round wooden stick (small enough just to fit in the neck of
the cartridge case)
Drill or knife
Long nail with sharpened end
Vise
Improvised loading fixture
Procedure
1. Remove fired primer from a used cartridge case using a sharpened nail. (See section 3.5.)
2. If necessary, open out flash hole in the primer pocket
using a drill or knife. Make it large enough to receive
fuse.
3. Place one end of fuse in the flash hole and extend it through the case until it becomes exposed at the
open end. Knot this end and then pull fuse in cartridge case thus preventing fuse from falling out.
4. Load the primary explosive in the cartridge case, using the
following table for the proper amount.
Primary Explosive Primary Explosive
Source Minimum Weight*
Lead picrate** Section 1.20 3 grams
(3 handbook pages)
TACC (tetramminecopper chlorate) Section 1.16 1 gram
(1 handbook page)
DDNP (diazodinitrophenol) Section 1.19 0.5 gram
(1/2 handbook page)
Mercury fulminate Section 1.24
0.75 gram
HMTD (3/4 handbook page) Section 1.17
Double salts Section 1.22
*See section 7.8 for details on improvised scale.
**.22 caliber cartridge case cannot be used with lead picrate as there is not enough volume to contain the
explosive train.
5. Compress the primary explosive into the cartridge
case with the wooden stick and the following improvised
loading fixture.
Caution: The primary explosive is shock and flame sensitive.
Note: Tamping is not needed when TACC is used.
6. Add one gram of booster explosive. The booster can be RDX (section 1.15), or picric acid (section
1.21).
7. Compress the booster explosive into the cartridge case with wooden stick and the loading fixture.
8. If the case is not full, fill the remainder with the secondary explosive to be detonated.
Caution: Detonator has considerably more power than a military blasting cap and should be
handled carefully.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Section 7
Miscellaneous
7.1 Clothespin Switch
A spring type clothespin is used to make a circuit closing switch to actuate explosive charges, mines,
booby traps and alarm systems.
Materials Required
Spring type clothespin
Solid copper wire, 1/16 inch (2 mm) in diameter
Strong string on wire
Flat piece of wood (roughly 1/8 inch x 1 inch x 2 inches)
Knife
Procedure
1. Strip four inches (10 cm) of insulation from the
ends of 2 solid copper wires. Scrape copper wires with
pocket knife until metal is shiny.
2. Wind one scraped wire tightly on one jaw of the
clothespin, and the other wire on the other jaw.
3. Make a hole in one end of the flat piece of
wood using a knife, heated nail or drill. Tie strong
string or wire through the hole.
4. Place flat piece of wood between jaws of the
clothespin switch.
Basic Firing Circuit
When the flat piece of wood is removed by pulling the string, the jaws of the clothespin will close
completing the circuit.
Caution: Do not attach the battery until the switch and trip wire have been emplaced and
examined. Be sure the flat piece of wood is separating the jaws of the switch.
A Method of Use
7.2 Mousetrap Switch
A common mousetrap can be used to make a circuit closing switch for electrically initiated explosives,
mines and booby traps.
Materials Required
Mousetrap
Hacksaw or file
Connecting wires
Procedure
1. Remove the trip lever from the mousetrap using a
hacksaw or file. Also remove the staple and holding
wire.
2. Retract the striker of the mousetrap and
attach the trip lever across the end of the wood
base using the staple with which the holding
wire was attached.
Note: If the trip lever is not made of
metal, a piece of metal of approximately
the same size should be used.
3. Strip one inch (2-1/2 cm) of insulation from the ends of 2 connecting wires.
4. Wrap one wire tightly around the spring
loaded striker of the mousetrap.
5. Wrap the second wire around
some part of the trip lever or
piece of metal.
Note: If a soldering iron is available, solder both of the above wires in place.
How to Use
This switch can be used in a number of ways—one typical method is presented here.
The switch is placed inside a box which also contains the explosive and batteries. The spring loaded
striker is held back by the lid of the box and when the box is opened the circuit is closed.
7.3 Flexible Plate Switch
This pressure sensitive switch is used for initiating emplaced mines and explosives.
Materials Required
Two flexible metal sheets:
one approximately 10 inches (25 cm) square
one approximately 10 inches x 8 inches (20 cm)
Piece of wood 10 inches square by 1 inch thick
Four soft wood blocks 1 inch x 1 inch x 1/4 inch
Eight flat head nails, 1 inch long
Connecting wires
Adhesive tape
Procedure
1. Nail 10 inch x 8 inch metal sheet to 10 inches
square piece of wood so that 1 inch of wood
shows on each side of metal. Leave one of the
nails sticking up about 1/4 inch.
2. Strip insulation from the end of one
connecting wire. Wrap this end around the nail
and drive the nail all the way in.
3. Place the four wood blocks on the corners of the
wood base.
4. Place the 10 inch square flexible metal sheet so
that it rests on the blocks in line with the wood base.
5. Drive four nails through the metal sheet and the
blocks to fasten to the wood base. A second
connecting wire is attached to one of the nails as in
step 2.
6. Wrap adhesive tape around the edges of
the plate and wood base. This will assure
that no dirt or other foreign matter will get
between the plates and prevent the switch
from operating.
How to Use
The switch is placed in a hole in the path of expected traffic and covered with a thin layer of dirt or other
camouflaging material. The mine or other explosive device connected to the switch can be buried with
the switch or emplaced elsewhere as desired.
When a vehicle passes over the switch, the two metal plates make contact closing the firing circuit.
7.4 Metal Ball Switch
This switch will close an electric circuit when it is tipped in any direction. It can be used alone for booby
traps or in combination with another switch or timer as an anti-disturbance switch.
Materials Required
Metal Ball 1/2 inch (1-1/4 cm) diameter (see note)
Solid copper wire 1/16 inch (1/4 cm) diameter
Wood block 1 inch (2-1/2 cm) square by 1/4 inch thick
Hand drill
Connecting wires
Soldering iron & solder
Note: If other than a 1/2 inch diameter ball is used, other dimension must be changed so that the ball will
rest in the center hole of the block without touching either of the wires.
Procedure
1. Drill four 1/16 inch holes and one 1/8 inch hole
through the wood block as shown.
2. Form two “U” shaped pieces from 1/16
inch copper wire to the dimensions shown.
3. Wrap a connecting wire around one leg of each “U” at least
1/4 inch from the end and solder in place.
4. Place metal ball on block so that it rests in the
center hole.
5. Insert the ends of the small “U” into two
holes in the block. Insert large “U” into the
remaining two holes.
Caution: Make sure that the metal does
not touch either “U” shaped wire when
the switch is standing on its base. If the
ball does touch, bend wires outward
slightly.
How to Use
Mount switch vertically and connect in electrical firing circuit as with any other switch. When tipped in
any direction it will close the circuit.
Caution: Switch must be mounted vertically and not disturbed while completing connections.
7.5 Altimeter Switch
This switch is designed for use with explosives placed on aircraft. It will close an electrical firing circuit
when an altitude of approximately 5000 feet (1-1/2 km) is reached.
Materials Required
Jar or tin can
Thin sheet of flexible plastic or waxed paper
Thin metal sheet (cut from tin can)
Adhesive tape
Connecting wires
Procedure
1. Place sheet of plastic or waxed paper over the top of the can or jar and tape tightly to sides of
container.
Note: Plastic sheet should not be stretched tight. A small depression should be left in the top.
2. Cut two contact strips from thin metal and bend to the shapes shown.
3. Strip insulation from the ends of two connecting wires.
Attach one wire to each contact strip.
Note: If a soldering iron in available solder wires in
place.
4. Place contact strips over container so that the larger
contact is above the smaller with a very small clearance
between the two.
5. Securely tape contact strips to sides of
container.
How to Use
1. Connect the altimeter switch in an explosive circuit the same as any switch.
2. Place the explosive package on airplane. As the plane rises the air inside the container will expand.
This forces the plastic sheet against the contacts closing the firing circuit.
Note: The switch will not function in a pressurized cabin. It must be placed in some part of the
plane which will not be pressurized.
7.6 Pull-Loop Switch
This switch will initiate explosive charges, mines, and booby traps when the trip wire is pulled.
Materials Required
2 lengths of insulated wire
Knife
Strong string or cord
Fine thread that will break easily
Procedure
1. Remove about 2 inches of insulation from one end of each
length of wire. Scrape bare wire with knife until metal is shiny.
2. Make a loop out of each piece of bare wire.
3. Thread each wire through the loop of the other wire so the
wires can slide along each other.
Note: The loops should contact each other when the two wires are pulled taut.
How to Use
1. Separate loops by about 2 inches. Tie piece of fine
thread around wires near each loop. Thread should be
taut enough to support loops and wire, yet fine enough
that it will break under a very slight pull.
2. Fasten one wire to tree or stake and connect end to firing circuit.
3. Tie a piece of cord or string around the other piece of wire a few inches from the loop. Tie free end of
cord around tree, bush, or stake. Connect the free end of the wire to the firing circuit. Initiation will occur
when the tripcord is pulled.
Caution: Be sure that the loops do not contact each other when the wires are connected to the
firing circuit.
Other uses: The switch minus the fine thread may be used to activate a booby trap by such means as
attaching it between the lid and a rigid portion of a box, between a door and a door jamb, and in similar
manners.
7.7 Knife Switch
This device will close the firing circuit charges, mines, and booby traps when the trip wire is pulled or
cut.
Materials Required
Knife or hack saw blade
6 nails
Strong string or light rope
Sturdy wooden board
Wire
Procedure
1. Place knife on board. Drive 2 nails into board on each side of knife handle so knife is held in place.
2. Drive one nail into board so that it touches blade of knife near the point.
3. Attach rope to knife. Place rope across path. Apply tension to rope, pulling knife blade away from nail
slightly. Tie rope to tree, bush, or stake.
4. Drive another nail into board near the tip of the knife blade as shown below. Connect the two nails
with a piece of conducting wire. Nail should be positioned so that it will contact the second nail when
blade is pulled about 1 inch (2-1/2 cm) to the side.
Note: Check position of nails to knife blade. The nails should be placed so that the knife blade will
contact either one when the rope is pulled or released.
How to Use
Attach one wire from firing circuit to one of the nails and the other to the knife blade. The circuit will be
completed when the tripcord is pulled or released.
7.8 Improvised Scale
This scale provides a means of weighing propellant and other items when conventional scales or balances
are not available.
Materials Required
Pages from Improvised Munitions Handbook
Straight sticks about 1 foot (30 cm) long and 1/4 inch (5 mm) in diameter
Thread or fine string
Procedure
1. Make a notch about 1/2 inch (1 cm) from each end of stick. Be sure that the two notches are the same
distance from the end of the stick.
2. Find the exact center of the stick by folding in half a piece
of thread the same length as the stick and placing it
alongside the stick as a ruler. Make a small notch at the
center of the stick.
3. Tie a piece of thread around the notch. Suspend stick
from branch, another stick wedged between rocks, or by
any other means. Be sure stick is balanced and free to
move.
Note: If stick is not balanced, shave or scrape a little off
the heavy end until it does balance. Be sure the lengths of
the arms are the same.
4. Make a container out of one piece of paper. This can be
done by rolling the paper into a cylinder and folding up the
bottom a few times.
5. Punch 2 holes at opposite sides of paper container. Suspend
container from one side of stick.
6. Count out the number of handbook pages equal in
weight to that of the quantity of material to be weighed.
Each sheet of paper weighs about 1.3 grams (20 grains or
0.04 ounce). Suspend these sheets, plus one, to balance
container on the other side of the scale.
7. Slowly add the material to be weighed to the container.
When the stick is balanced, the desired amount of material
is in the container.
8. If it is desired to weigh a quantity of material larger than that which would fit in the above container,
make a container out of a larger paper or paper bag, and suspend from one side of the stick. Suspend
handbook pages from the other side until the stick is balanced. Now place a number of sheets of
handbook pages equal in weight to that of the desired amount of material to be weighed on one side, and
fill the container with the material until the stick is balanced.
9. A similar method may be used to measure parts or percentage by weight. The weight units are
unimportant. Suspend equal weight containers from each side of the stick. Bags, tin cans, etc. can be
used. Place one material in one of the containers. Fill the other container with the other material until
they balance. Empty and refill the number of times necessary to get the required parts by weight (e.g., 5
to 1 parts by weight would require 5 fillings of one can for one filling of the other).
7.9 Rope Grenade Launching Technique
A method of increasing the distance a grenade may be thrown. Safety fuse is used to increase the delay
time.
Materials Required
Hand grenade (improvised pipe hand grenade, section 2.1, may be used)
Safety fuse or fast burning improvised fuse (section 6.7)
Light rope, cord, or string
Procedure
1. Tie a 4 to 6 foot (a meter) length Rope of cord to
the grenade. Be sure that the rope will not prevent
the grenade handle from coming off.
Note: If improvised grenade is used, tie cord around grenade near the end cap. Tape in place if necessary.
2. Tie a large knot in the other end of the cord for use as a handle.
3. Carefully remove safety pin from grenade, holding safety lever in place. Enlarge safety pin hole with
point of knife, awl, or drill so that safety fuse will pass through hole.
4. Insert
safety fuse in
hole. Be sure
that safety
fuse is long
enough to
provide a 10
second or
more time
delay.
Slowly
release
safety lever
to make sure
fuse holds
safety lever
in place.
Caution: If safety lever should be released for any reason, grenade will explode after regular delay
time (4–5 seconds).
Note: If diameter of safety fuse is too large to fit in hole (step 4), follow Procedure and How to Use of
Time Delay Grenade, section 6.9, instead of steps 3 and 4 above.
How to Use
1. Light fuse.
2. Whirl grenade overhead, holding knot at end of rope, until grenade picks up speed (3 or 4 turns).
3. Release when sighted on target.
Caution: Be sure to release grenade within 10 seconds after fuse is lit.
Note: It is helpful to practice first with a dummy grenade or a rock to improve accuracy. With practice,
accurate launching up to 100 meters (300 feet) can be obtained.
7.10 Bicycle Generator Power Source
A 6 volt, 3 watt bicycle generator will set off one or two blasting caps (connected in series) or an igniter.
Materials Required
Bicycle generator (6 volt, 3 watt)
Copper wire
Knife
Procedure
1. Strip about 4 inches (10 cm) of coating from both ends
of 2 copper wires. Scrape ends with knife until metal is
shiny.
2. Connect the end of one wire to the generator terminal.
3. Attach the end of the second wire to generator case.
This wire may be wrapped around a convenient
projection, taped, or simply held against the case with
the hand.
How to Use
1. Connect free ends of wires to blasting cap or squib leads.
Caution: If drive wheel is rotated, explosive may be set off.
2. Run the drive wheel firmly and rapidly across the palm of the hand to activate generator.
7.11 Automobile Generator Power Source
An automobile generator can be used as a means of firing one blasting cap or igniter. (Improvised
Igniter, section 5.2, may be used.)
Materials Required
Automobile generator (6, 12, or 28 volt) (an alternator will not work.)
Copper wire
Strong string or wire, about 5 feet (150 cm) long and 1/16 inch (1-1/2 mm) in diameter
Knife
Small light bulb requiring same voltage as generator (for example, bulb from same vehicle as
generator)
Procedure
1. Strip about 1 inch (2-1/2 cm) of coating from both ends of 3
copper wires. Scrape ends with knife until metal is shiny.
2. Connect the A and F terminals with one piece of wire.
3. Connect a wire to the A terminal. Connect another to the G
terminal.
Note: The F and G or C terminals may not be labeled; in this case, connect wires as shown. The F
terminal is usually smaller in size than the C or G terminal.
4. Wrap several turns of string or wire clockwise around the
drive pulley.
How to Use
1. Connect the free ends of the wires to the light bulb.
2. Place one foot on the generator to
secure it in place. Give the string or wire
a very hard pull to light the bulb.
Note: If not successful at first, rewind string and try again several times. After repeating this operation
and the bulb still does not light, follow step 4, How to Use.
3. If light bulb lights, follow steps 1 and 2 of above, How to Use, connecting free ends of wires to
blasting cap or igniter instead of to light bulb.
4. If light bulb does not light after several pulls, switch leads connected
to F and G terminals. Repeat above How to Use, steps 1 to 3.
7.12 Improvised Battery (Short Lasting)
This battery is powerful but must be used within 15 minutes after fabrication. One cell of this battery will
detonate one blasting cap or one igniter. Two cells, connected in series, will detonate two of these
devices and so on. Larger cells have a longer life as well as greater power.
Materials Required Source
Water
Sodium hydroxide (lye, solid or concentrated solution)
Soap manufacturing
Disinfectants
Sewer cleaner
Copper or brass plate about 4 inches (10 cm) square and 1/16 inch (2 mm)
thick
Aluminum plate or sheet, same size as copper plate
Charcoal powder
Container for mixing
Knife
One of the following:
Potassium permanganate, solid Disinfectants
Deodorants
Calcium hypochlorite, solid
Disinfectants
Water treating chemicals
Chlorine bleaches
Manganese dioxide (pyrolucite) Dead dry cell batteries
Note: Be sure sodium hydroxide solution is at least a 45% solution by weight. If not, boil off some of the
water. If solid sodium hydroxide is available, dissolve some sodium hydroxide in about twice as much
water (by volume).
Procedure
1. Scrape coating off both ends of wires with knife until metal is
shiny.
2. Mix thoroughly (do not grind) approximately equal volumes of powdered charcoal and one of the
following: potassium permanganate, calcium hypochlorite, or manganese dioxide. Add water until a very
thick paste is formed.
Caution: Avoid getting any of the ingredient on the skin or in the eyes.
3. Spread a layer of this mixture about 1/8 inch (2
mm) thick on the copper or brass plate. Be sure
mixture is thick enough so that when mixture is
sandwiched between two metal plates, the plates
will not touch each other at any point.
Note: If more power is required, prepare several plates as above.
How to Use
1. Just prior to use (no more than 15 minutes), carefully
pour a small quantity of sodium hydroxide solution over
the mixture on each plate used.
Caution: If solution gets on skin, wash off immediately with water.
2. Place an aluminum plate on top of the mixture on
each copper plate. Press firmly. Remove any excess
that oozes out between the plates.
Caution: Be sure plates are not touching each other at any point.
3. If more than one cell is used, place
the cells on top of each other so that
unlike metal plates are touching.
4. When ready to fire, clean plates with knife where connections are to be made. Connect one wire to the
outer aluminum plate. This may be done by holding the wires against the plates or by hooking them
through holes punched through plates. If wires are hooked through plates, be sure they do not touch
mixture between plates.
7.13 Improvised Battery (2 Hour Duration)
This battery should be used within 2 hours and should be securely wrapped. Three cells will detonate one
blasting cap or one igniter. Five cells, connected in series, will detonate two of these devices and so on.
Larger cells have a longer life and will yield more power.
If depolarizing materials such as potassium permanganate or manganese dioxide cannot be obtained, ten
cells without depolarizer, arranged as described below, (step 4) will detonate one blasting cap.
Materials Required Source
Water
Ammonium chloride (sal ammoniac)
(solid or concentrated solution)
Medicines
Soldering fluxes
Fertilizers
Ice melting chemicals for roads
Charcoal powder
Copper or brass plate about 4 inches (10 cm) square and 1/16 inch (2
mm) thick
Aluminum plate same size as copper or brass plate
Wax and paper (or waxed paper) Candles
Wire, string or tape
Container for mixing
Knife
One of the following:
Potassium permanganate, solid Disinfectants
Deodorants
Manganese dioxide Dead dry batteries
Note: If ammonium chloride solution is not concentrated (at least 45% by weight) boil off some of the
water.
Procedure
1. Mix thoroughly (do not grind) approximately equal volumes of powdered charcoal, ammonium
chloride and one of the following: potassium permanganate or manganese dioxide. Add water until a
very thick paste is formed. If ammonium chloride is in solution form, it may not be necessary to add
water.
2. Spread a layer of this mixture, about 1/8 inch (3
mm) thick on a clean copper or brass plate. The
layer must be thick enough to prevent a second
plate from touching the copper plate when it is
pressed on top.
3. Press an aluminum plate very firmly upon the
mixture on the copper plate. Remove completely any of
the mixture that squeezes out between the plates. The
plates must not touch.
4. If more than one cell is desired:
Place one cell on top of the other
so that unlike metal plates are
touching.
a.
Wrap the combined cells in heavy
waxed paper. The waxed paper can be
made by rubbing candle wax over one
side of a piece of paper. Secure the
paper around the battery with string,
wire or tape. Expose the top and
bottom metal plates at one corner.
b.
How to Use
1. Scrape a few inches off each end of two wires with knife till metal is shiny.
2. Clean plates with knife until metal is shiny where connections are to be made.
3. Connect one wire from the explosive to a copper or brass plate and the other wire to an aluminum
plate. The connection can be made by holding the wire against the plate. A permanent connection can be
made by hooking the wire through holes in the exposed corners of the plates. The battery is now ready
for use.
Note: If battery begins to fail after a few firings, scrape the plates and wires where connections are made
until metal is shiny.
7.14 Armor Materials
The following table shows the amount of indigenous materials needed to stop ball type projectiles of the
5.56 mm, .30 caliber, and .50 caliber ammunition fired from their respective weapons at a distance of 10
feet (3 m).
Thickness of Materials
Inches Centimeters
Indigenous Material 5.56
mm
.30
caliber
.50
caliber 5.56
mm
.30
caliber
.50
caliber
7.62
mm
12.70
mm
7.62
mm
12.70
mm
Mild steel (structural) 1/2 1/2 3/4 1-1/4 1-1/4 2
Mild aluminum (structural) 1 1 2 2-1/2 2-1/2 5
Pine wood (soft) 14 22 32 36 56 82
Broken stones (cobble gravel) 3 4 11 8 11 28
Dry sand 4 5 14 11 13 36
Wet sand or earth 6 13 21 16 33 54
Note: After many projectiles are fired into the armor, the armor will break down. More material must be
added.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Appendix 1
Primary High Explosives
A1.1 Mercury Fulminate
Description
Mercury fulminate is an initiating explosive, commonly appearing as white or gray crystals.
It is extremely sensitive to initiation by heat, friction, spark or flame, and impact. It detonates
when initiated by any of these means. It is pressed into containers, usually at 3000 pounds
per square inch (20 mPa), for use in detonators and blasting caps. However, when
compressed at greater and greater pressure (up to 30,000 pounds per square inch or 200
mPa), it becomes “dead pressed.” In this condition, it can only be exploded by another initial
detonating agent. Mercury fulminate gradually becomes inert when stored continuously
above 100°F. A dark-colored product of deterioration gives evidence of this effect. Mercury
fulminate is stored underwater except when there is danger of freezing. Then it is stored
under a mixture of water and alcohol.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 59.
TM 9-1910, Military Explosives, page 98.
A1.2 Lead Styphnate
Description
Lead styphnate is an initiating explosive, commonly appearing in the form of orange or
brown crystals. It is easily ignited by heat and static discharge but cannot be used to initiate
secondary high explosives reliably. Lead styphnate is used as an igniting charge for lead
azide and as an ingredient in priming mixtures for small arms ammunition. In these
applications, it is usually mixed with other materials first and then pressed into a metallic
container (detonators and primers). Lead styphnate is stored under water except when there is
danger of freezing. Then it is stored under a mixture of water and alcohol.
Comments
This item was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 59.
TM 9-1910, Military Explosives, page 107.
A1.3 Lead Azide
Description
Lead azide is an initiating explosive and is produced as a white to buff crystalline substance.
It is a more efficient detonating agent than mercury fulminate and it does not decompose on
long continued storage at moderately elevated temperatures. It is sensitive to both flame and
impact but requires a layer of lead styphnate priming mixture to produce reliable initiation
when it is used in detonators that are initiated by a firing pin or electrical energy. It is
generally loaded into aluminum detonator housings and must not be loaded into housing of
copper or brass because extremely sensitive copper azide can be formed in the presence of
moisture.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 60.
TM 9-1910, Military Explosives, page 103.
A1.4 DDNP
Description
DDNP (diazodinitrophenol is a primary high explosive. It is extensively used in commercial
blasting caps that are initiated by black powder safety fuse. It is superior to mercury
fulminate in stability but is not as stable as lead azide. DDNP is desensitized by immersion in
water.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 60.
TM 9-1910, Military Explosives, page 103.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Appendix 2
Secondary High Explosives
A2.1 TNT
Description
TNT (Trinitrotoluene) is produced from toluene, sulfuric acid, and nitric acid. It is a powerful
high explosive. It is well suited for steel cutting, concrete breaching, general demolition, and
for under water demolition. It is a stable explosive and is relatively insensitive to shock. It
may be detonated with a blasting cap or by primacord. TNT is issued in 1-pound and
1/2-pound containers and 50-pounds to a wooden box.
Comments
This material was tested. It is effective. TNT is toxic and its dust should not be inhaled or
allowed to contact the skin.
References
TM 9-1900, Ammunition, General, page 263.
FM 5-25, Explosives and Demolitions, page 3.
A2.2 Nitrostarch
Description
Nitrostarch is composed of starch nitrate, barium nitrate, and sodium nitrate. It is more
sensitive to flame, friction, and impact than TNT but is less powerful. It is initiated by
detonating cord. Nitrostarch is issued in 1-pound and 1-1/2-pound blocks. The 1-pound
packages can be broken into 1/4-pound blocks. Fifty 1-pound packages and one hundred
1-1/2-pound packages are packed in boxes.
Comments
This material was tested. It is effective.
Reference
TM 9-1900, Ammunition, General, page 263.
A2.3 Tetryl
Description
Tetryl is a fine, yellow, crystalline material and exhibits a very high shattering power. It is
commonly used as a booster in explosive trains. It is stable in storage. Tetryl is used in
detonators. It is pressed into the bottom of the detonator housing and covered with a small
priming charge of mercury fulminate or lead azide.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 52.
TM 31-201-1, Unconventional Warfare Devices and Techniques, para 1509.
A2.4 RDX
Description
RDX (cyclonite) is a white crystalline solid that exhibits very high shattering power. It is
commonly used as a booster in explosive trains or as a main bursting charge. It is stable in
storage, and when combined with proper additives, may be cast or press loaded. It may be
initiated by lead azide or mercury fulminate.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 52.
TM 31-201-1, Unconventional Warfare Devices and Techniques, para 1501.
A2.5 Nitroglycerin
Description
Nitroglycerin is manufactured by treating glycerin with a nitrating mixture of nitric and
sulfuric acid. It is a thick, clear to yellow-brownish liquid that is an extremely powerful and
shock-sensitive high explosive. Nitroglycerin freezes at 56°F, in which state it is less
sensitive to shock than in liquid form.
Comments
This material was tested. It is effective.
References
TM 9-1910, Military Explosives, page 123.
TM 31-201-1, Unconventional Warfare Devices and Techniques, para 1502.
A2.6 Commercial Dynamite
Description
There are three principal types of commercial dynamite: straight dynamite, ammonia
dynamite, and gelatin dynamite. Each type is further subdivided into a series of grades. All
dynamites contain nitroglycerin in varying amounts and the strength or force of the explosive
is related to the nitroglycerin content. Dynamites range in velocity of detonation from about
4000 to 23,000 feet per second and are sensitive to shock. The types and grades of dynamite
are each used for specific purposes such as rock blasting or underground explosives.
Dynamite is initiated by electric or nonelectric blasting caps. Although dynamites are
furnished in a wide variety of packages, the most common unit is the 1/2 pound cartridge.
Fifty pounds is the maximum weight per case.
Comments
This material was tested. It is effective.
References
TM 9-1900, Ammunition, General, page 265.
FM 5-25, Explosives and Demolitions, page 8.
A2.7 Military Dynamite
Description
Military (construction) dynamite, unlike commercial dynamite, does not absorb or retain
moisture, contains no nitroglycerin, and is much safer to store, handle, and transport. It
comes in standard sticks 1-1/4 inches in diameter by 8 inches long, weighing approximately
1/2 pound. It detonates at a velocity of about 20,000 feet per second and is very satisfactory
for military construction, quarrying, and demolition work. It may be detonated with an
electric or nonelectric military blasting cap or detonating cord.
Comments
This material was tested. It is effective.
References
FM 5-25, Explosives and Demolitions, page 7.
TM 9-1910, Military Explosives, page 204.
A2.8 Amatol
Description
Amatol is a high explosive, white to buff in color. It is a mixture of ammonium nitrate and
TNT, with a relative effectiveness slightly higher than that of TNT alone. Common
compositions vary from 80% ammonium nitrate and 20% TNT to 40% ammonium nitrate
and 60% TNT. Amatol is used as the main bursting charge in artillery shell and bombs.
Amatol absorbs moisture and can form dangerous compounds with copper and brass.
Therefore it should not be housed in containers of such metals.
Comments
This material was tested. It is effective.
References
FM 5-25, Explosives and Demolitions, page 7.
TM 9-1910, Military Explosives, page 182.
A2.9 PETN
Description
PETN (pentaerythrite tetranitrate), the high explosive used in detonating cord, is one of the
most powerful of military explosives, almost equal in force to nitroglycerin and RDX. When
used in detonating cord, it has a detonation velocity of 21,000 feet per second and is
relatively insensitive to friction and shock from handling and transportation.
Comments
This material was tested. It is effective.
References
FM 5-25, Explosives and Demolitions, page 7.
TM 9-1910, Military Explosives, page 135.
TM 31-201-1, Unconventional Warfare Devices and Techniques, para 1508.
A2.10 Blasting Gelatin
Description
Blasting gelatin is a translucent material of an elastic, jellylike texture and is manufactured in
a number of different colors. It is considered to be the most powerful industrial explosive. Its
characteristics are similar to those of gelatin dynamite except that blasting gelatin is more
water resistant.
Comments
This material was tested. It is effective.
References
TM 9-1910, Military Explosives, page 204.
A2.11 Composition B
Description
Composition B is a high-explosive mixture with a relative effectiveness higher than that of
TNT. It is also more sensitive than TNT. It is composed of RDX (59%), TNT (40%), and
wax (1%). Because of its shattering power and high rate of detonation, Composition B is
used as the main charge in certain models of bangalore torpedoes and shaped charges.
Comments
This material was tested. It is effective.
References
FM 5-25, Explosives and Demolitions, page 7.
TM 9-1900, Ammunition, General, page 57.
TM 9-1910, Military Explosives, page 193.
A2.12 Composition C4
Description
Composition C4 is a white plastic high explosive more powerful than TNT. It consists of
91% RDX and 9% plastic binder. It remains plastic over a wide range of temperatures (-70°F
to 170°F), and is about as sensitive as TNT. It is eroded less than other plastic explosives
when immersed under water for long periods. Because of its high detonation velocity and its
plasticity, C4 is well suited for cutting steel and timber and for breaching concrete.
Comments
This material was tested. It is effective.
Reference
TM 9-1910, Military Explosives, page 204.
A2.13 Ammonium Nitrate
Description
Ammonium nitrate is a white crystalline substance that is extremely water absorbent and is
therefore usually packed in a sealed metal container. It has a low velocity of detonation (3600
feet per second or 1100 meters per second) and is used primarily as an additive in other
explosive compounds. When it is used alone, it must be initiated by a powerful booster or
primer. It is only 55% as powerful as TNT, hence larger quantities are required to produce
similar results.
Comments
This material was tested. It is effective.
Caution: Never use copper or brass containers because ammonium nitrate reacts with
these metals.
References
TM 9-1900, Ammunition, General, page 264.
TM 9-1910, Military Explosives, page 119.
Improvised Munitions Handbook (Improvised Explosive Devices or IEDs)
Colophon
C.1 Version History
C.1.1 Version 1.0 (1969)
The only things known about the very first publication from 1969 are that it was printed in loose-leaf
form and on lighter paper than the widely-available v2.0 reprint. These are known because the
procedure for making an Improvised Scale shows a picture of loose hole-punched sheets and the text
says, “Each sheet of paper [of the Improvised Munitions Handbook] weighs about 1.3 grams.”
However, the reprint uses heavier paper that weighs about 4.5 grams a sheet.
C.1.2 Version 2.0 (1970s or 1980s)
A 6-by-9-inch (15-by-23-cm) trade paperback with a brownish-yellow cover, apparently a reprint of
the original publication, is referred to here as v2.0. It has been available to the public for decades,
particularly from alternative mail-order publishers and military surplus stores.
C.1.3 Version 3.0 (2007 – Thanks-to-Feinstein's Electronic Edition)
This electronic edition was created from the reprint described above. (“Thanks-to-Feinstein” is a
satirical reference to Senator Dianne Feinstein who passed a perverse law that erodes free speech in
the U.S.)
Diagrams were scanned at 300-dpi grey scale and saved as JPEG format. Text was scanned and
converted by optical character recognition, manually checked, and reformatted in HTML. The
colophon (this section) was added. A PDF file was created from the HTML files.
All corrections and changes made while converting the original paper document to electronic form
are listed below. Nothing substantial was changed; this electronic edition adheres as closely as
possible to v2.0.
Corrections and formatting in v3.0
Some words and phrases were corrected for spelling, consistency, or errors in metric
conversion.
1.
2. Most abbreviations were expanded for clarity.
Trivial changes such as removing or adding whitespace, capitalization changes, or deleting
unnecessary periods at the end of words in a table are not itemized.
3.
4. Hyphenation at ends of line were removed.
5. Words in ALL CAPITALS were changed to boldface.
6. Underlined words were changed to italics.
7. Words that were both ALL CAPITALS AND UNDERLINED were changed to boldface.
Page numbers were removed, but the HTML source code has comments that indicate the v2.0
page numbers; look for “IMH v2.0 page number nnn” in the HTML source code of this
8.
document. The PDF edition does not provide a way to view the HTML comments.
Most mixed numbers (i.e., consisting of a whole number and a fraction) have a hyphen in
v2.0 (e.g., 1-1/4 inch). For consistency, all mixed numbers are now shown with a hyphen;
e.g., 1 1/4 inch became 1-1/4 inch.
9.
The handbook used both table headings “Material Required” and “Materials Required”. All
former were changed to the latter for consistency.
10.
Likewise the handbook used both table headings “Common Source” and “Source”. All
former were changed to the latter for consistency.
11.
Section numbers were changed from Roman to Arabic numerals in keeping with current
practice; e.g., Section V, No. 7 became Section 5.7
12.
Although this document is titled the Improvised Munitions Handbook, improvised munitions
are now better known as improvised explosive devices or IEDs. The current expression was
added in parentheses alongside each occurrence of the title.
13.
Words and phrases corrected in v3.0
Page in IMH v2.0 Original word in IMH v2.0 Corrected word in IMH v3.0
005 manufacture explosives manufacture of explosives
006 of assure proper to assure proper
010 re-desolve redissolve
012 squeexe squeeze
014 tablespoonsful tablespoonfuls [2 occurrences]
014 tablespoonsful tablespoonful
017 Comp. C-4 Composition C4
017 Comp. B Composition B
028 mononitrobenezene mononitrobenzene
032 Anti-freeze Antifreeze
032 non-permanent nonpermanent
043 C-4 C4 [5 occurrences]
044 C-4 C4 [2 occurrences]
054 Place 1/4 teaspoon 3. Place 1/4 teaspoon
059 milliters milliliters
071 No. 8 commercial commercial #8 (a)
074 handtight hand tight
075 Non-Electric Military Nonelectric military
076 anti-personnel antipersonnel
077 non-sparking nonsparking
078 pre-heat preheat
081 non-metallic nonmetallic
083 NON-ELECTRICAL nonelectrical
084 Non-metal Nonmetal
085 Method 1 Method I
086 non-electrical nonelectrical
087 Non-metallic Nonmetallic
089 non-electrical nonelectrical
090 non-electrical nonelectrical
092 non-electric nonelectric
092 so so that so that
094 explosove explosive
098 re-inspect reinspect
102 re-inspect reinspect
103 hand-tight hand tight
105 re-fold refold
109 hand-tight hand tight
113 8-1/2 [inch] 26-1/2 [cm] 8-1/2 [inch] 21-1/2 [cm] (b)
113 6 [inch] 20 [cm] 6 [inch] 15 [cm] (b)
120 re-inspect reinspect
124 guage gauge
132 push-rod pushrod [2 occurrences]
134 push-rod pushrod
135 push-rod pushrod
151 sulphuric acid sulfuric acid (c) [3 occurrences]
152 sulphuric acid sulfuric acid (c)
152 250 cc 250 milliliters (d)
160 sulphuric acid sulfuric acid (c)
161 sulphuric acid sulfuric acid (c)
164 Egg Systems Egg White Systems
170 up-side down upside down
171 sulphuric acid sulfuric acid (c) [3 occurrences]
172 sulphuric acid sulfuric acid (c) [2 occurrences]
206 sulphur sulfur (c) [3 occurrences]
206 non-electric nonelectric
209 wiree wire
210 non-slip nonslip
217 procedure 5 step 5
220 C-4 C4
225 5 4 (e)
226 MATERIEL Materials
245 dry-cell dry cell
246 permangenate permanganate
252 Section 13 Appendix 1 (f)
252 execpt except
253 Section 14 Appendix 2 (f)
254 maufactured manufactured
255 nitroglycerine nitroglycerin (c) [2 occurrences]
(a)For consistency with other occurrences of the same phrase.
(b)This corrects an inaccurate conversion in v2.0 from U.S. weights and measures to the metric
system.
(c)Although both spellings are correct, the change was made for consistency with other occurrences
of the same word.
(d)For consistency with the rest of the handbook, the abbreviation cc was changed to milliliters.
(e)The procedure was misnumbered in v2.0.
(f)Sections 13 and 14 of the v2.0 reprint were renamed Appendix 1 and 2 in v3.0. (There were no
sections 8 through 12 in v2.0.) Sections 13 and 14 of v2.0 had different typefaces and layouts from
the rest of the book. These discrepancies suggest that sections 13 and 14 were copied from a
different source and bound into v2.0.
Abbreviations expanded in v3.0
Original abbreviation in IMH v2.0 Expanded abbreviation in IMH v3.0
" (double quote) inch or inches
Cal. caliber
KM km
Nom. nominal
approx. approximately
conc. concentration
fps feet per second
ft. foot or feet
gm gram or grams
gms grams
in. inch or inches
lb. pound or pounds
min. minute or minutes
No. number
oz. ounce
psi pounds per square inch
qt. quart
sec. second or seconds
sp. gr. specific gravity
sq. square
yds. yards
C.2 Copyright Information
This work is in the public domain. The original work was created by U.S. Federal Government
employees in their official capacity. Therefore by United States Code, title 17, section 105, it is not
subject to copyright.
This electronic edition is anti-dedicated to U.S. Senator Dianne Feinstein who authored a federal law
that makes it illegal in certain circumstances to publish documents just like this one. The military is
essentially immune to this law, but civilians lose free speech, a concept that apparently means
nothing to Feinstein. (Sherman Austin is an example of a person jailed under Feinstein's law.)
Feinstein feigns disgust at the dissemination of information about explosives without acknowledging
the U.S. military's prominent role in producing exactly the kind of information that she condemns.
This handbook is indisputable proof of the military's involvement with improvised explosive
devices; in fact, the Improvised Munitions Handbook has been the definitive reference on IEDs since
the 1970's.
What absurdity Feinstein has created. The military creates and uses technology that the public can
not even discuss without fearing prosecution under Feinstein's draconian law.