the m14 is an american 7.62 nato battle rifle that was adopted in 1959 during the vietnam war. the m14 production begin in 1959 and ended in 1964. the m14 can be used as a battle rifle, marksman rifle and a sniper rifle. the m14 was based on a ww2 m1 garand. in the late 1960s and early 1970s the m14 got replaced by the m16a1 by the united states army in vietnam.