This BCA AR-15 complete rifle length upper has a 10.5" parkerized Heavy barrel, and features a 1:20 twist rate, with a carbine length gas system. It includes a 9.5" MLOK Rail, an M4 flat-top billet upper receiver, a BCA AR15 bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected).
click here to buy
https://www.usedguns.com/Item/Details/BEAR_CREEK_ARSENAL_PISTOL_BCA15_/00F2EE9521B14AA28DC9849A21C8C477
dv1035107
FREE BOX OF 5.56