FAXON MATCH SERIES GUNNER PROFILE 14.5" 1:8T PISTOL-LENGTH 338 ARC AR15 BARREL

Faxon
SKU:
15B338A8P145NGQ-5R-NP3
|
UPC:
816341028852
$235.00
(3 reviews)
Current Stock:
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Faxon Match Series — 14.5" Gunner Profile .338 ARC AR Barrel

416R Stainless • 1:8 Twist • Gunner Profile • Black Nitride • 5/8x24 Threads • Pistol-Length Gas

The Faxon Match Series 14.5" Gunner Profile .338 ARC Barrel blends precision accuracy, lightweight handling, and exceptional reliability into a compact, high-performance package. Designed for the .338 Advanced Rifle Cartridge (ARC), this barrel is ideal for hunters, marksmen, and tactical shooters seeking optimized ballistic performance in a shorter configuration.

Built from 416R stainless steel with a 1:8 twist, each barrel is stress relieved, air-gauge tested, and finished with a durable Black Nitride coating to resist wear and corrosion. Faxon’s Gunner profile combines the strength of a Government contour with the lightweight responsiveness of a Pencil barrel, offering superior balance and reduced fatigue.

Each Faxon barrel is manufactured entirely in-house in Cincinnati, Ohio, and undergoes Magnetic Particle Inspection (MPI) and headspacing checks using precision PTG gauges to guarantee safe and consistent performance.

Key Benefits

  • Gunner Profile: Balanced design combining Gov’t durability with Pencil-style agility.
  • 416R Stainless Steel: Match-grade material ensures consistency and precision.
  • 1:8 Twist Rate: Stabilizes a wide range of .338 ARC bullet weights.
  • Black Nitride Finish: Increases barrel hardness and corrosion resistance.
  • Pistol-Length Gas System: Optimized for shorter AR configurations.
  • 5/8x24 Muzzle Threads: Compatible with standard .30 caliber muzzle devices and suppressors.
  • Individually MPI & Headspaced: Ensures tight tolerances and safe operation.
  • Made in the USA: 100% manufactured in-house by Faxon Firearms in Cincinnati, Ohio.

Specifications

Caliber / Chamber
.338 ARC
Length
14.5"
Twist Rate
1:8 Right-Hand Twist
Profile
Gunner
Gas System
Pistol-Length
Material
416R Stainless Steel
Rifling
Button Rifled
Finish
Black Nitride
Muzzle Threads
5/8x24 TPI
Gas Block Diameter
.750"
Gas Block Journal Length
1.9"
Barrel Extension
M4
Weight
1.27 lbs
Crown
11° Target Crown

Important Product Note

Some customers may need to adjust their upper receiver feed ramps to ensure proper feeding, particularly when using Hornady Sub-X ammunition. For best reliability, Faxon recommends pairing this barrel with Duramag magazines designed for 400 Legend. Always confirm compatibility with your firearm setup and consult a qualified gunsmith if needed. Faxon Firearms is not liable for damage or malfunctions resulting from improper installation or use.

Frequently Asked Questions

Is this barrel compatible with standard AR-15 bolts and mags?
No. Faxon recommends a .338 ARC-compatible bolt and Duramag 400 Legend magazines for best results.
Can this barrel be used with a suppressor?
Yes. The 5/8x24 muzzle threads are compatible with most .30 caliber suppressors and muzzle devices.
Will I need to modify my feed ramps?
Some upper receivers may require slight feed ramp adjustment when running certain bullet designs such as Hornady Sub-X.

Overview: 14.5" Match Series Gunner Profile .338 ARC Barrel

The Faxon Match Series 14.5" .338 ARC Barrel delivers precision and performance for compact AR-15 builds. With its Gunner profile, Black Nitride finish, and 1:8 twist, it provides superior stability and barrel life—ideal for hunters and long-range enthusiasts looking for an intermediate-caliber powerhouse.

Made in Cincinnati, Ohio, every Faxon Match barrel exemplifies American craftsmanship, ensuring reliability and accuracy for a lifetime of service.

Barrel Material:
416-R Stainless
Barrel Type:
Button Rifled
Caliber:
338 ARC
Barrel Twist:
1:8
Barrel Length:
14.5"
Barrel Profile:
Gunner
Barrel Gas System:
Pistol
Outside Finish:
QPQ Nitride
Muzzle Thread:
5/8x24
Gas Block Diameter:
.750"
Gas Block Journal Length:
1.9"
Barrel Extension:
M4
Crown Type:
Recessed 11-degree Target Crown

Reviews

  • 5
    338 Gunner Barrel 14.5 inch

    Posted by Jon on Oct 22nd 2025

    This is the 3rd Faxon 338 ARC barrel I've purchased. One other 14.5 and one 10.5, each for different applications. I really like the cartridge--primarily for pig hunting here in Texas. The short one has a red dot and is for suppressed subsonic daytime use. One 14.5 is Nightforce scoped for supersonic suppressed daytime use. The third is for suppressed sub or supersonic night time operations and is equipped with an AGM Added V2 640 thermal. Each of these is a spectacular performer when used for the purpose intended. These barrels are reliable, well made, accurate as can be--whether sub or supersonic (I'm using Hornady in both). I'm sub MOA in an AR, which makes putting the hammer down on pigs makes them DRT. Strongly recommend Faxon barrels--they are my go to generally when I'm building AR's

  • 5
    .338ARC 14.5" barrel.

    Posted by brian slanker on Apr 3rd 2025

    I love it. This round hits like a train. WOW. The 14.5" Faxon barrel is very accurate. I run it with a Dead Air Primal can and it's on time. Very light and handles well.

  • 5
    338ARC

    Posted by Hart Johnson on Mar 24th 2025

    Great fit and finish. The Barrel extension Faxon used provided one of the tightest fitment of any build I’ve done. Bore inspection revealed it was clean, shiny and smooth. , so was the chamber. Only shot it out to 50 yards using a Romeo 4 red dot and off hand at that but it grouped well with the 300smk, a 220grn Speer SP and a 185grn btbt. I’m happy with the barrel and my build. Great Stuff Faxon and highly recommend!!!