Upgrade your AR-10 platform with the Faxon Duty Series .308 WIN 18" Big Gunner Rifle Barrel. This barrel offers an excellent balance between accuracy and maneuverability for your .308 build. Machined from 4150 CMV steel and featuring a button-rifled bore, this barrel provides exceptional precision and durability. The Big Gunner profile combines the best aspects of government and pencil profiles, offering improved harmonics and heat dissipation. Finished with a durable QPQ Nitride treatment, this barrel ensures long-lasting corrosion resistance and smooth operation. The 1:10 twist rate is optimized for stabilizing a wide range of .308 Winchester bullet weights, making it versatile for various shooting applications.

Features and Specifications:

• Caliber: .308 Winchester
• Length: 18 inches
• Profile: Big Gunner
• Material: 4150 CMV Steel
• Finish: QPQ Nitride
• Barrel Type: Button Rifled
• Twist Rate: 1:10
• Gas System: Rifle Length
• Muzzle Threading: 5/8x24
• Gas Block Diameter: .750"
• Gas Block Journal Length: 1.9"
• Barrel Extension: LR-308 (DPMS Compatible)
• Magnetic Particle Inspected
• 11-degree Target Crown
• Made in the USA