The standard barrel at Faxon value and quality. 4150 balances accuracy, longevity, and swing. 4150 QPQ coated inside and out for amazing corrosion resistance and durability.

Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are button-rifled and air-gauge 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: 4150
• Barrel Type: Button Rifled
• Barrel Caliber: 5.56 NATO
• Barrel Twist: 1:8
• Barrel Length: 16"
• Barrel Profile: Gov't/SOCOM
• Barrel Gas System: Mid Length
• Inside Finish: QPQ Nitride
• Outside Finish: QPQ Nitride
• Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
• Gas Block Diameter: .750"
• Gas Port Diameter: .081"
• Barrel Extension: M4
• Weight: 1.70 lbs
• Magnetic Particle Inspected!
• 11-degree Target Crown