AR15 8.5" .300 BLK Blackout Upper Receiver

This AR-15 complete 300 Blackout Right Side Charging pistol length upper has a 7.5" Mid Weight barrel with a Melonite finish, and features a 1:8 twist rate, with a pistol length gas system. It includes the 15" MLOK split rail, an M4 flat-top 4150 Chrome Moly Vanadium upper receiver, a bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 300 Blackout upper is compatible with any mil-spec AR-15 lower.