This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" fluted heavy contour barrel with a stainless steel and black nitride finish, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK rail, an M4 flat-top billet upper receiver, a bolt carrier group, a flash hider, and a right-side charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower.
BCG Included
