Anderson Manufacturing’s AM15-OPTIC READY Rifle is chambered in .223/5.56 and comes with a 16” Chrome Moly Vanadium Steel M4 contour barrel in 1-8 twist, Forged Receivers, A2 Hand Guard, 6 position buttstock, A2 pistol grip, A2 Flash Hider, Mil-spec Trigger, and Hammer, Standard Charging Handle, Single point sling mount, and one thirty round magazine. All receivers, charging handles and buffer tubes are 7075 T6.