Fully Optimized Big Gunner Barrel For .308 Win Rifles
The Faxon Firearms AR-10 16 inch Big Gunner Barrel – .308 WIN is the bigger version of the Faxon’s unique 5.56 Gunner barrels that feature a medium-taper profile behind the gas block – fully optimized to meet the Gunner brand’s high standards.
These AR-10 barrels offer a gas block journal that is set to .750″ for compatibility with most common gas blocks and 1.9″ in length for long blocks or aftermarket piston kits. It also uses a thinner taper from the gas block journal forward that is designed to reduce weight yet maintain rigidity for high rates of fire and as a suppressor host.
The Faxon Big Gunner barrels offer superior accuracy with less weight which is ideal for any competition or duty use.
4150 CMV Stainless Steel With A QPQ Nitride Finish
The Faxon Firearms AR-10 16 inch Big Gunner Barrel – .308 WIN is built from tough 4150 CMV stainless steel with a QPQ nitride finish inside and out for enhanced resistance to corrosion and wear for an extended lifetime of use. It is fully stress-relieved, air-gauge tested and 11-degree target crowned to ensure durability and superior accuracy.
Features:
- Lightweight: The no.1 choice of major brands in terms of balanced weight and performance. Expect superior accuracy minus the weight!
- Accurate: Fully stress relieved, air-gauge tested and 11-degree target crowned to ensure exceptional accuracy.
- Tough Finish: Built from 4150 CMV Steel with QPQ Nitride Finish from the inside and out, this barrel is as strong and tough compared to other expensive brands.
Features:
- Lightweight: The no.1 choice of major brands in terms of balanced weight and performance. Expect superior accuracy minus the weight!
- Accurate: Fully stress relieved, air-gauge tested and 11-degree target crowned to ensure exceptional accuracy.
- Tough Finish: Built from 4150 CMV Steel with QPQ Nitride Finish from the inside and out, this barrel is as strong and tough compared to other expensive brands.
Specifications:
- Barrel Material: 4150 CMV
- Barrel Type: Button Rifled
- Barrel Caliber: .308 WIN
- Barrel Twist: 1:10
- Barrel Length: 16”
- Barrel Profile: Big Gunner
- Barrel Gas System: Mid
- Inside Finish: Salt Bath Nitride
- Outside Finish: Salt Bath Nitride
- Muzzle Thread: 5/8-24
- Gas Block Diameter: .750″
- Gas Block Journal Length: 1.9″
- Barrel Extension: LR-308 (DPMS Compatible)
- Weight: 1.91 lbs
- Magnetic Particle Inspected
- 11-degree Target Crown
Specifications:
| Caliber | .308 Winchester/7.62x51 NATO |
| Barrel Length | 16 inches |
| Barrel Twist Rate | 1:10 inches |
| Barrel Material | 4150 CMV |
| Muzzle Threads | 5/8/2024 |
| Barrel Finish | Black Nitride |
| Gas Block Size | .750″ Gas Block |
| Fit | AR-10 |
| Barrel Profile | Big Gunner |
| Barrel Gas System | Midlength |
| Gas Block Journal Length | 1.9 inches |
| Barrel Extension | M4 |
| Weight | 30.56 ounces |





















