Bushmaster M4A2 Upper Receiver

Bushmaster M4A2 Upper Receiver Bushmaster M4A2 Upper Receiver 00-40026-BLK 5.56/.223 16" Barrel Phosphate Chrome Lined A2 Flash Hider 1:7 Twist 1/2x28 Thread Carbine Length Gas System 7075 Aluminum Alloy Chrome Lined Bolt Carrier Group M4 Heat Shield Bolt MPI HPT Tested Carry Handle Bushmaster M4A2 Upper Receiver. 5.56/.223 complete AR15 upper receiver assembly with carry handle. If you are looking to build an AR15 or upgrade your existing rifle this retro style AR-15 upper receiver fits the bill. Features a 16" phosphate chrome lined barrel with 1:7 twist and is threaded 1/2x28. Other features include an A2 carry handle, A2 flash hide and carbine length gas system. Just add your favorite lower receiver and your ready to hit the range.