Faxon Firearms Duty Series, Big Gunner, 1:3 Twist Barrel, 8.6 Blackout, 16", Carbine-Length Gas System, Fits AR-10, Nitride Finish, Black

As with all Faxon Barrels, these 8.6 BLK barrels are machined from raw bar stock in their greater Cincinnati Facility. Faxon 8.6 BLK barrels are fully stress-relieved, air-gauge tested, Magnetic Particle Inspected, and 11-degree target crowned to ensure superior accuracy. Constructed of 4150 CMV, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. • Barrel Material: 4150 CMV • Rifling: Button • Barrel Caliber: 8.6 BLK • Barrel Twist: 1:3 • Barrel Length: 16";Barrel Profile: Big Gunner;Barrel Gas System: Pistol;Inside Finish: Salt Bath Nitride;Outside Finish: Salt Bath Nitride;Muzzle Thread: M18x1.5, tapered shoulder (adapter included);Gas Block Diameter: .875 • Gas Block Journal Length: 1.9";Barrel Extension: Standard DPMS Gen 1 .308 Extension, Black Oxide;Weight: 2.0 lbs;Magnetic Particle Inspected;11 degree Target Crown