Complete AR-15 16″ 7.62×39 Upper w/ 10″ Flat Dark Earth Slim, Lightweight M-Lok Hand Guard Upper includes a 16″ barrel tipped with a 5/8″-24 threaded and indexed A2 flash hider/suppressor. Carbine gas system with a low-profile micro gas block. A3 upper receiver comes with forward assist and ejection port cover installed. The barrel and receiver have matching M4 feed ramps. Heavy duty M16 bolt carrier group and charging handle included. Comfortable 10″ free floating flat dark earth M-Lok hand guard. This high quality upper is a perfect fit on any 5.56 or multi-cal AR-15 lower. Swap the complete upper assembly, lock it on the lower and you’re ready to shoot!  Comes with the Barrier Defense lifetime warranty! ****Know your states laws when purchasing gun parts.****