Faxon Match Series 10.5", Gunner 300 BLK, Pistol-Length, 416-R Stainless QPQ Nitride, 5R, Nickel Teflon Extension AR-15 Barrel

(7 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.

Faxon Firearms barrels are the pinnacle of value. 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: 416-R Stainless Steel
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 300 BLK
  • Barrel Twist: 1:8
  • Barrel Length: 10.5”
  • Barrel Profile:  Gunner
  • Barrel Gas System: Pistol
  • Inside Finish: Nitride
  • Outside Finish: Nitride
  • Muzzle Thread: 5/8x24
  • Gas Block Diameter: .750" 
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4 
  • Weight:  1.10 lbs
  • Magnetic Particle Inspected
  • Recessed Target Crown
Barrel Material:
416-R Stainless
Barrel Type:
Button Rifled
Barrel Caliber:
300 BLK
Barrel Twist:
Barrel Length:
Barrel Profile:
Barrel Gas System:
Inside Finish:
Salt Bath Nitride
Outside Finish:
Salt Bath Nitride
Muzzle Thread:
Gas Block Diameter:
Gas Block Journal Length:
Barrel Extension:
Barrel Weight:
1.10 lbs
Crown Type:
Recessed 11-degree Target Crown
Barrel Length Range:
8" - 10.5"


  • 4
    Good, but not great...

    Posted by Andrew on Feb 19th 2024

    This was my first .300 barrel, and I was relatively new to firearms. Reading the specs list, this seemed like an absolute killer value for the price. Many rounds downrange, and a few more builds under my belt later, I have a couple of gripes. First, this barrel is overgassed, or at least mine was! I understand that needing to be able to reliably cycle rounds ranging from 110-220 (standard factory load) grains is pretty tricky to exactly nail, and it's better to be over than under-gassed. That said, the barrel that I have 'upgraded' into handles 110's and 220's just as reliably, and is less gassy. Second, I'm not sure this "gunner" profile is all that great... The aforementioned barrel I 'upgraded' into is a fully heavy contour, and I am none the wearier after a 4-hour day at the range. The heavy contour also maintains accuracy over fire schedules better than this barrel does. I'm certainly no expert, so take my review with a grain of salt. All this said, you really won't find greater bang for your buck than this barrel. I would just say plan on sticking to subs though if you intend to run a can, which is what this barrel has been completely relegated to now.

  • 5
    go to 300 bo barrel

    Posted by LARRY on Jan 29th 2024

    I use this barrel regularly in our custome builds. customers think its great!

  • 5
    Match Series 10.5"Gunner 300 BLK Barrel

    Posted by JR on Aug 7th 2023

    Great quality and finish. The Nickel Teflon extension is one of the best I've seen on any barrel. The fit on my VLTOR upper is tight and solid. Best fit of ANY barrel Ive installed on an AR upper. Stupid accurate at 50 Yds. as it is at 100 Yds. I am very happy with the results. Faxon knocks it out of the park with their Match Series. I will be purchasing another Match Series barrel soon!!!

  • 5
    Amazing Barrel

    Posted by David Brogdon on Jul 13th 2023

    This is hands down one of the best 300 blackout barrels I have shot. It's accuracy and reliability are above all of its competitors. And it looks good too.

  • 5
    Loved it

    Posted by Anthony ortega on Mar 14th 2022

    Very pleased with my Faxon barrel super light looks and feels amazing definite 10/10 and highly recommended

  • 4
    10.5 Gunner barrel

    Posted by Dylan Hamilton on Jun 28th 2021

    The barrel have look and feel like high quality. The fit into my Anderson upper was very tight which is a good thing. I have yet to put any rounds through the barrel as I'm still in the middle of my build.

  • 5
    300 blk

    Posted by Rob on Apr 21st 2018

    Super accurate which i expect from faxon...great job