Faxon Duty Series 16", Gunner, 7.62x39 Russian, Mid-Length, 4150 QPQ Nitride AR-15 Barrel

(4 reviews)
Current Stock:

The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. Faxon's Gunner profile combines the durability of the Gov't profile with the weight savings and maneuverability of the Pencil profile. The Gunner profile brings the balance of the rifle back towards the shooter's body, limiting fatigue, and allowing for shooting, training, or hunting all day long.

Manufactured in-house in Cincinnati, Ohio, Faxon barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. Quality is imbued into our barrels from the beginning of the manufacturing process.. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace with precision PTG gauges.

  • Barrel Material: 4150 CMV
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 7.62x39
  • Barrel Twist: 1:8
  • Barrel Length: 16”
  • Barrel Profile:  Gunner
  • Barrel Gas System: Mid
  • Inside Finish: Nitride
  • Outside Finish: Nitride
  • Muzzle Thread:5/8-24 
  • Gas Block Diameter: .750" 
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4 
  • Weight:  1.48  lbs
  • Magnetic Particle Inspected
  • 11-degree Target Crown
Barrel Material:
Barrel Type:
Button Rifled
Barrel Caliber:
Barrel Length:
Barrel Twist:
Barrel Profile:
Barrel Gas System:
Inside Finish:
Salt Bath Nitride
Outside Finish:
Salt Bath Nitride
Gas Block Diameter:
Gas Block Journal Length:
Barrel Extension:
1.48 lbs
Crown Type:
Recessed 11-degree Target Crown
Barrel Length Range:
16" - 18"


  • 5
    Fine stuff

    Posted by Stephen Crump on Sep 11th 2023

    With a little heavier buffer (not Faxon issue) my Adams Arms gas piston system has my AR eating everything including Russian Steel. Faxon is a great place to get your build going.

  • 5
    On Target

    Posted by Sebastian Woods on Aug 20th 2023

    I purchased both this and the 5R limited edition and they both shoot wonderfully. Faxon is great for well made products at a more affordable price. We appreciate that Faxon!

  • 5
    Best 7.62x39 Barrel on the Market

    Posted by Steel Arms Industries on Jun 15th 2020

    Hands Down the Best 7.62x39 Barrel on the Market. Fits all the Criteria's, Price, Quality and Performance. The fit & Finish is perfect, it is a Mid Length Gas System, the reduction of recoil is amazing on this barrel. Pair it with Faxon BCG and you are good to go.

  • 5
    5 Stars

    Posted by Maxx on Mar 5th 2018

    Fit and finish is flawless. Fast shipping and good packaging. My only "complaint" is that I didnt get any Faxon stiickers!