Dark Storm DS-15 M4 Style Fixed Magazine 5.56 Rifle Black DS-15 Forged 7075 Aluminum Closed Trigger Fixed Magazine Lower Receiver DSI Forged 7075 Aluminum Upper Receiver w/ Forward Assist and Ejection Port Cover DSI M16 Bolt Carrier Group DSI CAR15 7" Drop-In Forearm DSI A2 Front Sight Base w/ Bayonet Lug and Sling Swivel Carbine Gas System DSI 16" 5.56 Threaded 1:9 Nitrite Barrel DSI A2 Style Birdcage Flash Hider DSI Mil-Spec 7075 Buffer Tube DSI M4 Style Adjustible Stock DSI A2 Pistol Grip Magpul MBUS Rear Sight 10 Round Fixed Magazine Trigger Lock