This BCA 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 BCA AR15 bolt carrier group, a flash hider, and a rear charging handle. This 12.7x42 is compatible with any mil-spec AR-15 lower.
*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.
WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to the California P65 Warning site.