This AR-15 complete 300 Blackout rifle length upper has a 416R stainless 16" bear claw fluted heavy barrel with a black nitride finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 9.5" MLOK rail, an M4 flat-top forged upper receiver, a bolt carrier group, a flash hider, and a rear charging handle. This 300 Blackout upper is compatible with any mil-spec AR-15 lower.
