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18" GUNNER, 5.56 NATO, Rifle-Length, 4150 QPQ

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  • Product Description

    Just what is the GUNNER profile?

    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.  

    Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these 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 start. 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 by precision custom hardened gauges. 

    Faxon manufactures all our barrels in Cincinnati, Ohio under our ISO:9001 and AS:9100  quality certifications. 

    • 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
  • Product Reviews


    Write A Review

    1. amazing barrel

      Received the barrel very quickly and earlier than projected, installed the barrel that day and everything fit flawlessly a few days later took it to the range and it cycled and grouped very well on 24th Feb 2017

    2. One of the best barrels I have ever used

      Finally got the the range with my new GUNNER barrel. When I got it I was really impressed with the finish, workmanship. But when I shoot it I could not believe how accurate it was at 100 yds after a light break in and sighting in the scope, the rifle as shooting around .75 MOA groups. This is not with a match grade ammo, but with my normal shooting ammo, 55 gr Hornaday FMJ's. I have two other AR's that shoot slightly tighter groups and both those barrels were 3 times the price on the GUNNER.

      I will be spending more money with Faxon.
      on 2nd Jan 2017

    3. 18" gunner great

      Built my gun with the 18" gunner, shots 3/8" groups with my reloads ( alliant ar comp, 50grain barnes varminators) awesome barrel my next one will be a faxon. on 15th Nov 2016

    4. Excellent barrel

      I like the lightweight and the finish is great. No problem with the installation on an Aero Precision upper. receiver.

      At the range I got 1 inch groups from the bench with Federal M855 ammo. The rifle length gas system created smooth recoil.

      With the chrono I was able to detect about 100 FPS more out this than my 16 inch barrels and about 50 FPS less than my 20 inch barrels.

      It was easy to clean.

      This barrel is good to go. I would buy another one.
      on 4th Oct 2016

    5. When your budget doesnt match your desires, Faxon has you covered

      This will be my initial feedback on this barrel, and I will followup with an extensive review after a few hundred rounds.

      I was looking for an affordable 1 MOA Barrel for an SPR project. My philosophy on AR builds has always focused on the Barrel and BCG. I belive those 2 components can make or break a builds reliability and Accuracy. My previous builds using Faxon Barrels have proven to be better than expected when you compare just the prices of other brands with comparable performance.

      I wanted light weight, Accurate, Affordable, and Dependable. I was asking for a lot in this price range (Sub $200). On initial testing, it appears that I got everything I wanted, and expected. The profile of the "Gunner" isnt traditional, and isnt something most would consider for a build like this. Bringing the weight to the rear is brilliant, the concept convinced me to give it a shot (No pun, wait, who am i kidding).

      I usually bed the Barrels on builds that I require as much accuracy as possible, but the "Gunner" matched up quite well with the Rainier Arms upper Receiver I am using. I skipped the bedding process (For now at least), and I dont regret it at all. So far I am experiencing 1 MOA or better with 77 grn, and just under 1.25 MOA with 55grn. These results are from the first range trip and the barrel hasnt had 100 rounds fired through it yet. I suspect things will tighten up a bit. This gun is intended for honing my skills as a shooter out to 500 yards with a 5.56 round. This should never see rapid fire use, or your traditional battle rifle duty. I built it to be able to handle anything I throw at it though, maybe I can get some friends to push it hard on occasion.

      My experience with this barrel and the 6 others I have on other builds has me very confident when recommending Faxon Firearms Barrels to shooters looking for quality Barrels that most, if not all shooters can afford.
      on 30th Sep 2016

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