Who invnted m 16 rifle?
Eugene Stoner designed the AR-15, which with certain DOD required refinements, became known by the designation M-16. This all happened in the late 1950s with adoption in the early 1960s
An M-16 is an Assault rifle designed in 1957 It usually has a 5.56x45mm NATO round as ammunition, and can have a 20 or 30 round clip. An additional option is a m203 grenade launcher attached to it, giving it a 40mm grenade as backup. Statistically, an m-16 is a decent gun, but it notorious for requiring frquent oiling and cleaning.