At one time the standard issued rifle for Marines, the M14 is now used primarily in the Competition in Arms program, or for drill and ceremonial purposes. The M16 replaced the M14 as the Table of Organization rifle for the Marine Corps during the Vietnam War.
The M14 7.62 mm rifle is a magazine-fed, gas operated shoulder weapon, designed primarily for semi-automatic fire. It was the standard service rifle until it was replaced in the late 1960s by the 5.56mm M16A1 rifle.
