How an AR15 Works — Cool 3D Cutaway Animation Video « Daily Bulletin
Shotgun firing mechanism : r/mechanical_gifs
Colt's Model 1911 (and all its clones) is an autoloading pistol, firing from a closed breech. Like all pistols, its operation is based on the action of the gases produced when a cartridge is fired. These gases are used to cycle the slide of the pistol, whose ...