Manufacture: Bear Creek Arsenal
Chambered: .300 BLK (AAC Blackout)
.750” gas block diameter
Carbine length with enhanced gas port hole diameter.
5/8”X24 Tread Pitch
4140 gun quality steel, heat threaded to RC 28-32 hardness, stress relieved
This barrel carries the same thread pitch as the AR-10 barrels 5/8x24 to add a muzzle device