FEATURES: -Caliber: 5.56mm -16" Melonite steel barrel, Threaded w/ A2 Flash Hider -Phosphated 8620 Steel carrier assembly -Forged 7075 T6 Aluminum upper & lower receiver, Mil-Spec -A2 Grip -Mako rear sight -M4 6-position buttstock -One 30-round magazine -Weight: 5.8 lbs -Overall length: 32.625"-36.375"