Misaka Sisters - F2000R "Toy Soldier"

The F2000R "Toy Soldier" is a electronically assisted, recoil reduced, silenced assault rifle.

> The assault rifle was made of laminated plastic instead of steel. As it was shaped in a functional aesthetic type of
way like something one would see on a fighter aircraft, it looked like a toy gun from some kind of SF world. And
that appearance was not necessarily wrong.

> The rifle, the F2000R Toy Soldier, detected the target with infrared rays and used electronic control to adjust the
trajectory in real time to give the bullet the best odds of hitting. The shooter did not have to think about the wind
direction or the expected evasion patterns of the target. If one aimed the barrel the way the “thinking machine” told
them to, anyone could become an expert marksman. On top of that, it had special rubber wrapped around it to absorb
shock and used carbon dioxide to reduce the recoil from firing as much as possible. While the Metal Eater antitank
rifle was a monster that only a large adult could wield, the F2000R with its low recoil that was said to not even crack
an egg was also a monster in that it could easily be wielded by a 2nd grader.

...

> The rifle silently absorbed both the shock and the sound of the gunshot, so only the tiniest of an explosive noise left
the barrel as if only a cheap firecracker had been set off. Nevertheless, 5.56 mm bullets accurately shot toward the
boy’s vital points.

*A Certain Magical Index* Volume 3, Chapter 2, Part 5, Pages 31-32