Colt M16A2 Complete Specs and Full Gun Specifications

The M16A2 was developed for USMC (United States Marine Corps). It is improved M16A1 rifle. It kept the same direct impingement rotating bolt system but improved in many other details like a reinforced barrel, new pistol grip, new flash hider, etc. M16A2 doesn't have a full auto mod like M16A1, but a three-round burst mode instead.