10.5", LIGHT, 300 BLK, PISTOL-LENGTH, 4150 QPQ

300 BLK with pistol gas system for optimum reliabiliyt with super or subsonic ammo. 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-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: 4150 
• Barrel Type: Button Rifled 
• Barrel Caliber: 300BLK AAC
• Barrel Twist: 1:8RH
• Barrel Length: 10.5
• Barrel Profile: Medium
• Barrel Gas System: Pistol
• Inside Finish: QPQ Nitride
• Outside Finish: QPQ Nitride
• Muzzle Thread: 5/8"-24 
• Gas Block Diameter: .750"
• Gas Hole Diameter: .075"
• Barrel Extension: M4
• Weight: 1.15 lbs
• Magnetic Particle Inspected!
• 11-degree Target Crown