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Taking the AR15 parts and accessories to new heightsTM
Faxon Firearms

Faxon Firearms Gunner AR-15 5.56 Nato Rifle Lenth Barrel 4150 QPQ - 18

Faxon Firearms Gunner AR-15 5.56 Nato Rifle Lenth Barrel 4150 QPQ - 18

Availability: In stock




The GUNNER (all caps, as it is that awesome) is the pinnacle of performance, weight, balance, and value. Designed by our competition shooting staff for those who value performance and versatility, the GUNNER profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. 

Proving that every once and awhile, the Government can do something right, the GUNNER's profile from the extension to the gas block mimics that delicious taper. From there, common sense takes over and the GUNNER moves to a .625" gas block journal and our famed pencil profile out front.

Removing the weight from the front of the barrel ensures maximum versatility and keeps material to the rear to maximize heat resistance and mitigate whip.

The GUNNER is for real gunners.  

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: 18"
  • Barrel Profile: GUNNER Light Hybrid
  • Barrel Gas System: Rifle Length
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
  • Gas Block Diameter: .625"
  • Gas Port Diameter: .093"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4
  • Weight: 1.44 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

Additional Info

Additional Info

Manufacturer Faxon Firearms
Finish Black
Barrel Length 18"
Caliber 5.56
Configuration No
Option No
Gas Length AR15 Rifle
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


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