Anderson AM15-M4 5.56mm NATO 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - M4 chambered in .5.56mm NATO comes with a 16in Chrome Moly Vanadium Steel M4 contour barrel 1: 8 twist, Carbine Gas Set Up, Forged Receivers, Magpul Butt stock and Magpul pistol grip, Andersons EXT Free Float, Anderson Low Profile Gas Block, Anderson Knight Stalker Flash Hider. Optic Ready Forged 7075-T6 Receiver M4 Contour 4150 Extended Barrel Magpul buttstock and grip
