SKU: FF23345
UPC: 816341023345
MPN: 10B810R20FHQ-5R-NP3
The Faxon AR10 Barrel .308 Win in 20" length with 1:10 twist and 5R rifling is built for shooters who demand precision and reliability in intermediate to long-range rifle builds. This heavy fluted barrel is engineered for AR10 platforms chambered in .308 Winchester, making it ideal for precision rifle competition, tactical training, and field applications where shot-to-shot consistency matters. Faxon's reputation for quality manufacturing ensures this barrel meets the exacting standards of law enforcement and military precision shooters.
The 1:10 twist rate is optimized for stabilizing a wide range of .308 Winchester projectiles, from 168-grain match rounds to heavier 200+ grain rounds, providing flexibility across ammunition types without sacrificing accuracy. The 5R rifling profile reduces bullet deformation and engraving pressure, resulting in cleaner velocities and tighter velocity spreads—critical for maintaining zero across extended shooting sessions. Heavy fluting reduces overall weight to 2.5 lbs while maintaining rigidity and promoting more efficient heat dissipation during sustained fire, keeping barrel harmonics stable and point-of-impact shifts to a minimum. The black nitride finish provides reliable corrosion resistance and a low-gloss aesthetic that blends seamlessly with tactical configurations.
This barrel is compatible with standard AR10 receivers (.308 DPMS pattern) and drops into existing builds with minimal gunsmithing. The 20" length strikes a balance between velocity retention for extended-range work and maneuverability in field environments—a proven configuration for designated marksmen rifles and competition platforms. Installation requires proper headspacing tools and familiarity with AR10 assembly; professional installation is recommended for users new to platform builds. Whether you're upgrading a precision rifle or building from the ground up, the Faxon AR10 Barrel delivers the accuracy and durability required by serious .308 Winchester shooters.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.