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Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel Up to $18.00 Off — Free 2 Day Shipping w/ code 2DAYAIR — 5 models

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Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 9in, 1-5 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A5P9NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 14.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P145NGQ-5R-NP3
Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel, 16in, Gunner Profile, Pistol Length, 1-8 Twist, Black, 15B338A8P16NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 12.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P125NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 9in, 1-5 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A5P9NGQ-5R-NP3
1 of 8 images
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 9in, 1-5 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A5P9NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
2 of 8 images
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 14.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P145NGQ-5R-NP3
3 of 8 images
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 14.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P145NGQ-5R-NP3
Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel, 16in, Gunner Profile, Pistol Length, 1-8 Twist, Black, 15B338A8P16NGQ-5R-NP3
4 of 8 images
Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel, 16in, Gunner Profile, Pistol Length, 1-8 Twist, Black, 15B338A8P16NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
5 of 8 images
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
6 of 8 images
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 12.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P125NGQ-5R-NP3
7 of 8 images
Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 12.5in, Gunner, Pistol Lenfth, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P125NGQ-5R-NP3
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3
8 of 8 images
Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 12.5in, 1-8 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A8P125NGQ-5R-NP3

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Questions & Answers
Customer Reviews
Helpful Positive Review
Extremyl Accurate by Nodave, Verified Owner, October 17, 2025
Wanted to get into 338arc. Went with this one on a recommendation from Custom Defense. Very accurate on both factory subs and supers. My hand loads prove to be even more accurate.
1/1 found this helpful
Most Recent Reviews
Great barrel by AttemptedGreatness, Verified Owner, January 13, 2026
Just what you need to maximize the performance of the round you're building for. Good looking, tight fitting, does what it should.
Most Recent Reviews
338arc build by Nodave, Verified Owner, October 10, 2025
Wanted to go bigger because the 6 arc was a failure in putting some hogs down. Bought and installed with an adjustable gas block. Tuning it down awaiting for the supressor I bought for this also. Holds very tight groups with the loads I make. I am im...
Read More...
Most Recent Reviews
Faxon barrel 338 arc by Zw89, Verified Owner, July 22, 2025
Fast shipping the best shipping. Quality barrel needs to be installed with heat
Read All 4 Reviews

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Product Info for Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel

Faxon Match Series 16in Gunner Profile .338 ARC AR Barrel 416R Stainless 1:8 Twist Gunner Profile Black Nitride 5/8x24 Threads Pistol-Length Gasimage

The Faxon Match Series 16in Gunner Profile .338 ARC Barrel offers unmatched precision and balance for shooters who demand accuracy and dependability from an intermediate-caliber AR platform. Designed and manufactured 100% in-house at Faxon Firearms in Cincinnati, Ohio, this barrel brings together cutting-edge engineering, premium materials, and expert craftsmanship. Constructed from 416R stainless steel with a 1:8 twist for optimal projectile stabilization, this barrel is stress-relieved, air-gauge tested, and finished in Black Nitride for superior durability and corrosion resistance. The Gunner Profile blends the rigidity of a Govt contour with the weight savings of a Pencil profilereducing fatigue and improving rifle balance for extended use. Each Faxon barrel undergoes Magnetic Particle Inspection (MPI) and individual headspacing with PTG precision gauges to ensure safety and reliability from the first shot to the last.

WARNING: California`s Proposition 65

Specifications for Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel:

Manufacturer: Faxon Firearms
Color: Black
Finish: Nitride
Fabric/Material: 416R Stainless Steel
Caliber: .338 ARC
Barrel Profile: Gunner
Gas System Length: Pistol Length
Gas Block Journal Size-Diameter: .750 in
Barrel Material: 416R Stainless Steel
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Weight: 1.15 lb
Condition: New
Firearms Threads Per Inch: 5/8x24

Features of Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel

  • Gunner Profile: Combines strength and lightness for improved handling and balance.
  • 416R Stainless Steel: Match-grade material for consistent accuracy and long life.
  • 1:8 Twist Rate: Optimized for stabilizing both light and heavy .338 ARC projectiles.
  • Black Nitride Finish: Corrosion-resistant, wear-resistant, and visually sleek.
  • Pistol-Length Gas System: Ensures smooth cycling and reliable operation.
  • 5/8x24 Muzzle Threads: Compatible with .30-cal suppressors and standard muzzle devices.
  • Individually MPI Headspaced: Guarantees tight tolerances and safe operation.
  • Made in Cincinnati, Ohio: 100% manufactured in-house by Faxon Firearms.

Package Contents:

  • Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel

What firearm models does the manufacturer say Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel is compatible with?

The manufacturer suggests that Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel is compatible with AR-15

Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 9in, 1-5 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A5P9NGQ-5R-NP3 , MPN: 15B338A5P9NGQ-5R-NP3 , UPC: 816341029057 , Code: 11I-ATB-15B-15B338A5P9NGQ-5R-NP3
  • Faxon Firearms Gunner AR-15 .338 ARC Threaded Barrel, 11.5in, 1-5 Twist, 416R SS, Nitride, 5R, AR-15 BBL, Black, 15B338A5P115NGQ-5R-NP3 , MPN: 15B338A5P115NGQ-5R-NP3 , UPC: 816341029064 , Code: 11I-ATB-15B-15B338A5P115NGQ-5R-NP3
  • Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 12.5in, Gunner, Pistol Length, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P125NGQ-5R-NP3 , MPN: 15B338A8P125NGQ-5R-NP3 , UPC: 816341028845 , Code: 11I-ATB-15B-15B338A8P125NGQ-5R-NP3
  • Faxon Firearms AR-15 .338 ARC Caliber Threaded AR Barrel, 14.5in, Gunner, Pistol Length, 1-8 Twist, 5/8x24, Black Nitride, 15B338A8P145NGQ-5R-NP3 , MPN: 15B338A8P145NGQ-5R-NP3 , UPC: 816341028852 , Code: 11I-ATB-15B-15B338A8P145NGQ-5R-NP3
  • Faxon Firearms Match Series AR-15 .338 ARC Threated AR Barrel, 16in, Gunner Profile, Pistol Length, 1-8 Twist, Black, 15B338A8P16NGQ-5R-NP3 , MPN: 15B338A8P16NGQ-5R-NP3 , UPC: 816341029323 , Code: 11I-ATB-15B-15B338A8P16NGQ-5R-NP3
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