This BCA AR-10 complete 6.5 Creedmoor rifle length upper has a 20" 416R Stainless Steel heavy barrel, and features a 1:8 twist rate, with a rifle length gas system. It includes a 15" MLOK Rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a Right side charging (Gen 2) handle (patent pending). This 6.5 Creedmoor is compatible with 1st gen DPMS low profile lowers.