Faxon Big Gunner 8.6 Blackout 16″ Barrel — 1:3 Twist

The Faxon Firearms Big Gunner 16″ barrel for 8.6 Blackout is built from 4150 CMV steel and finished with a Salt Bath Nitride process. Each barrel is fully stress-relieved, air-gauge tested, and magnetic particle inspected during manufacture. It features button rifling, an 11-degree target crown, and M18x1.5 muzzle threads. Designed for use on AR-10 platform rifles, the Big Gunner contour balances rigidity and weight for dedicated shooting applications.

Key Specifications

• The caliber is 8.6 Blackout.
• The barrel length is 16 inches.
• The twist rate is 1:3.
• The barrel material is 4150 CMV (Chrome Moly).
• The finish is Salt Bath Nitride.
• The rifling type is Button Rifled.
• The contour is Big Gunner.
• The gas system length is Carbine.
• The muzzle threads are M18x1.5.
• The barrel weight is 2.2 lbs.

Built and inspected to exacting standards, this Faxon Big Gunner barrel is suited to shooters looking for a robust 8.6 Blackout solution on AR-10 style rifles. Its combination of 4150 CMV construction, Nitride finish, and precise machining makes it appropriate for precision shooting and other applications where a purpose-built barrel is required.