CAR-15 CARBINE M-16 TOY ASSAULT RIFLE KID BOY MACHINE GUN SOUND MILITARY ARMY Assault rifle. Gun fire sounds! The colt automatic rifle-15 military weapons system or car-15 was a family of ar-15 and m16 riflebased firearms marketed by colt in the late 1960s and early 1970s. Due to their compact size, the short-barreled colt commando and xm177 versions of this family continued to be issued to the u. S. Military after the vietnam war. Toy guns make a realistic rat-tat-tat firing sound with no batteries needed! 16 inches long.