Barrel machined in the U.S chambered in the 300 BLK (AAC Blackout) rifle cartridge Runs the American 30 caliber slug with an enhanced pistol gas system port. This barrel carries the same tread pitch as the AR-10 barrels 5/8x24 to add a muzzle device.
Chambered: .300 BLK (AAC Blackout)\
.750” gas block diameter
Please refer to your local state law before purchasing