or AR-15
The M16, designed by Eugene M. Stoner in the 1950s for the ArmaLite Division of Fairchild Engine and Airplane Corp., has both semiautomatic and automatic capabilities. It weighs less than 9 lbs (3.6 kg) when equipped with a 30-round magazine, is 39 in. (99 cm) long, and fires a high-velocity .223-inch (5.56-mm) round. It can be fitted with a 40-mm grenade launcher. The M4 is a compact carbine version of the M16. See also Springfield rifle ; {{link=AK -47">AK-47 .