Faxon 18" 5R 308 AR Heavy Fluted Barrel Stainless QPQ

Faxon's .308 continue our fantastic barrel-making with a bit more punch. Reach out and touch something.

Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are button-rifled and air-guage tested to ensure superior accuracy.

All barrels are manufactured under our ISO:9001 and AS:9100 (pending) quality certifications. We inspect each barrel over 15 times before it ever reaches you. 

• Barrel Material: 416-R Stainless
• Barrel Type: Button Rifled 
• Barrel Caliber: .308 WIN
• Barrel Twist: 1:10, 5R
• Barrel Length: 18
• Barrel Profile: Heavy Fluted
• Barrel Gas System: Mid
• Inside Finish: Nitride QPQ         
• Outside Finish: Nitride QPQ
• Muzzle Thread: 5/8-24 TPI
• Gas Block Diameter: .750" 
• Gas Port Diameter: .081"
• Gas Block Journal Length: 1.1"
• Barrel Extension: DPMS LR-308 Compatible
• Barrel Weight: 2.31 Lbs
• Magnetic Particle Inspected!
• 11-degree Target Crown

*Note - Faxon Firearms barrels are chambered to SAAMI specification .308 Winchester at a nominal headspace depth (passing "Go" and failing "No-Go"). This ensures maximum safety and accuracy.

7.62x51 NATO is not the same round as .308 Winchester, though it will fit within chamber. 7.62x51 technically requires deeper headspacing to meet the miltiary specification and is known to function in Faxon .308 WIN barrels under most circumstances. However, due to the variation of components in the .308 AR world and variations between loadings, Faxon cannot guarantee or warrant function with 7.62x51, especially with bolts with tight ("match") .308  WIN headspacing.