COLT LE6920 OEM2 OPTICS READY M4 CUSTOM CARBINE - 5.56/223 - MAGPUL CTR MILSPEC RETRACTABLE STOCK,  16" BARREL NATO 1/7, KEY MOD TACTICAL RAIL 15" U.S. MADE, AMBIDEXTROUS SLING ATTACHMENT, MOE TRIGGER GUARD, EXTENDED CHARGING HANDLE, MAGPUL PLUS GRIP, MUZZLEBRAKE, (1) MAGPUL 30RD MAG.