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.

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 ...

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 ...

In 1962, the rifle was authorized for military use as M16 and has been in service ever ... Chairman of the Russian Civic Chamber, the introduction of third-country contingents into Ukraine would ...