AR15 5.56 18" Bolt Action Upper Receiver

*30% less weight with V2 split rail than regular MLOK! This AR-15 Complete 5.56 NATO Bolt Action Style rifle length upper has an 18" heavy barrel with a melonited stainless finish, bear claw flutes, and features a 1:8 twist rate. It includes an MLOK split rail, an M4 flat-top 7075 billet aluminum upper receiver, a stainless 416R mid-length gas system, a bolt carrier group, a flash hider, and a right-side bolt action style charger. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower.