This semi-automatic has a gas impingement system with a manual lever and indicator markings on both sides of the receiver, and an M4A4-type flat top upper receiver with a detachable carry handle made of forged 7075 T6 aircraft aluminum with an aluminum trigger guard and a hard-coat black anodize finish. The 16" barrel is made of chrome-lined 4150 chrome moly vanadium steel with an M4 profile and an A2 flash suppressor. It has a 6-position telescoping buttstock with M4 double heat shield hand guards and a black phenolic plastic grip.