


Product Description
The Faxon Firearms .308 Win Big Gunner AR-10 Barrel is the heavy-caliber evolution of Faxon's renowned Gunner profile line, purpose-built for AR-10, LR-308, and DPMS-compatible platforms. Machined from 4150 Chrome Moly Vanadium (CMV) steel and button rifled for consistent, proven accuracy, this 16-inch mid-length barrel delivers a compelling balance of compactness and real-world performance. A full salt bath nitride (QPQ) treatment inside and out provides exceptional corrosion resistance and wear protection, making it equally capable in harsh field conditions or high-round-count training sessions. The Big Gunner profile features a medium taper behind the gas block for strength and rigidity, transitioning to a thinner forward taper to reduce weight and improve handling without sacrificing heat dissipation at sustained rates of fire. With a .750" gas block journal measuring 1.9" in length, it is compatible with most standard low-profile gas blocks and aftermarket piston kits. The 5/8x24 muzzle threading supports a wide range of .30-caliber muzzle devices and suppressor mounts, making this barrel a versatile, suppressor-ready platform. Backed by the Faxon Lifetime Guarantee and proudly manufactured in Greater Cincinnati, Ohio, the Big Gunner is the choice for competition and duty builds where every second counts.
Product Highlights
- 4150 CMV Steel, Button Rifled: Machined from 4150 Chrome Moly Vanadium steel with traditional button rifling for long-lasting accuracy and dependable performance under demanding use.
- Salt Bath Nitride (QPQ) Inside and Out: Full QPQ nitride treatment delivers superior corrosion resistance, reduced friction, and enhanced durability for extended service life in any condition.
- Big Gunner Profile: Medium taper behind the gas block retains strength and rigidity, while a slimmer forward taper reduces weight for faster target transitions and improved balance.
- Mid-Length Gas System: Optimized dwell time promotes smoother cycling and a more controlled recoil impulse in a 16-inch .308 Win AR-10 build.
- .750" Gas Block Journal and 5/8x24 Muzzle Threads: Compatible with most common low-profile gas blocks and piston kits, and supports a full range of .30-caliber muzzle devices and suppressor mounts.
Specs
- Brand: Faxon Firearms
- Caliber: .308 Winchester
- Barrel Length: 16"
- Barrel Profile: Big Gunner
- Barrel Material: 4150 CMV (Chrome Moly Vanadium) Steel
- Barrel Type: Button Rifled
- Twist Rate: 1:10 RH
- Gas System: Mid-Length
- Gas Block Journal Diameter: .750"
- Gas Block Journal Length: 1.9"
- Inside Finish: Salt Bath Nitride (QPQ)
- Outside Finish: Salt Bath Nitride (QPQ)
- Muzzle Thread: 5/8x24 TPI
- Crown: 11 Degree Target Crown (Non-Recessed)
- Platform Compatibility: LR-308 / DPMS Compatible
- UPC: 816341023260
- MPN: 10A810M16NGQ
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