AR15 18" Upper Receiver 6.5 Grendel Bolt Action

This AR-15 Complete 6.5 Grendel Bolt Action Style rifle length upper has a 18" heavy barrel with straight flutes and a 416R Stainless Steel finish, and features a 1:8 twist rate. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a bolt carrier group, a flash hider, and a right-side bolt action style charger. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower.