This AR-15 complete 12.7x42 pistol length upper has a 10.5" parkerized heavy barrel, and features a 1:20 twist rate, with a pistol length gas system. It includes a 10" MLOK Rail, an M4 flat-top forged upper receiver, a AR15 bolt carrier group, a flash hider, and a rear charging handle. This 12.7x42 is compatible with any mil-spec AR-15 lower.
BCG Included
