AR15 18" Upper Receiver | 6.5 Grendel | FDE | ODG | Tungsten

This AR-15 complete 6.5 Grendel rifle length upper has an 18" heavy barrel with a 416R stainless steel finish, and features a 1:8 twist rate, with a mid-length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower.