It was gas-operated with a vertically sliding chamber and featured ... a 5.56mm round from an M16 moves at about 3,000 feet per second. The rifle had very low recoil and was the cheapest of ...

Summary and Key Points: The M16 rifle, designed by Eugene Stoner and adopted by the U.S. military in the 1960s, has remained a staple due to its reliability, modularity, and effectiveness.

The standard 5.56mm chamber has .025-inch longer freebore ... the U.S. Army adopted Armalite’s AR-15 rifle, dubbed the M16. The M16 first saw combat in the Vietnam war and went on to become ...

45 caliber submachine guns, and selected M9 pistols and M16 rifles. The Army is pursuing ... recoil buffer, barrel chamber, magazine and bolt, as well as ergonomic changes to allow Soldiers ...

has come up with a smooth bore counterpart of the US assault rifle AR-15 (its military version is known as M16), the company said on Friday. "Earlier we created AR-15 type rifles for NATO’s 5 ...