AR15 7.62x39 4.5" Bolt Action Upper Receiver

This AR-15 Complete 7.62x39 Bolt Action Style pistol length upper has a 4.5" heavy barrel with a Parkerized finish, and features a 1:10 twist rate. It includes an MLOK split rail, an M4 flat-top 7075 billet aluminum upper receiver, a bolt carrier group, a flash hider, a 4150 pistol length gas system, and a right-side bolt action style charger. This 7.62x39 upper is compatible with any mil-spec AR-15 lower.