The Faxon Duty Series Pencil .308 Win barrel features 4150 CMV steel with a 1:10 twist, rifle-length gas system, and salt bath nitride finish with 5/8×24 threads. Designed and manufactured 100% in-house at Faxon Firearms in Cincinnati, Ohio, this barrel brings Faxon’s Pencil profile to the AR-10 platform for fast handling and accuracy in long-range and field applications.
Each barrel undergoes stress relief, air-gauge testing, and magnetic particle inspection before receiving a Salt Bath Nitride (QPQ) finish inside and out for maximum corrosion resistance and longevity. The Pencil profile’s precisely engineered taper removes unnecessary weight while maintaining harmonic stability for consistent accuracy—Faxon’s lightest .308 barrel design optimized for weight reduction and accuracy retention. With rifle-length gas, this 18″ configuration delivers a smooth recoil impulse and consistent cycling in balanced AR10 setups.
This barrel is built for DPMS / LR-308 compatibility; confirm fitment with your receiver set, bolt, and gas components before installation. Backed by the Faxon Lifetime Guarantee for materials and workmanship, this pencil-profile AR-10 barrel is the choice for shooters prioritizing lightweight performance without compromise on durability or precision.
