local active_item = npc:active_item()
local restricted_weapon = wpn_cats.restricted_weapon()
local shwetyballz = math.random(1,4)
if bone_index == npc:get_bone_id("bip01_r_forearm") and active_item ~= nil and ~= restricted_weapon and hit.power >= 0.4 and shwetyballz == 1 then
  npc:set_item(object.drop, active_item)
end