This BCA AR-15 complete 5.56 Nato rifle length upper has a 16″ M4 contour barrel with a stainless steel finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15″ MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a side charging (Gen 2) handle (patent pending). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. This has the new handguard.
Shop more 5.56 NATO Uppers!
Check out Magazines here!
Check out our Ammunition Recommendations!
