FAXON MATCH SERIES GUNNER PROFILE 11.5" 1:5T PISTOL-LENGTH 338 ARC AR15 BARREL

Faxon
SKU:
15B338A5P115NGQ-5R-NP3
|
UPC:
816341029064
$235.00
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Faxon Match Series — 11.5" Gunner Profile .338 ARC AR Barrel

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

The Faxon Match Series 11.5" Gunner Profile .338 ARC Barrel brings match-grade performance to compact AR platforms where a balance of handling and ballistic performance matters. Built 100% in-house in Cincinnati, Ohio, this barrel combines premium metallurgy, precision manufacturing, and practical short-barrel ergonomics.

Constructed from 416R stainless steel with a stout 1:5 twist optimized for heavy .338 ARC projectiles, each barrel is stress-relieved, air-gauge tested, MPI inspected and finished in Black Nitride for long-lasting durability. The Gunner Profile blends Gov't rigidity with Pencil-like weight savings to return the rifle's balance toward the shooter for reduced fatigue during extended use.

For optimal feeding and minimal upper modification, we recommend pairing this barrel with our optimized .338 ARC upperFaxon .338 ARC optimized upper.

Key Benefits

  • 11.5" length: Compact yet ballistically capable for short-barrel applications.
  • Gunner Profile: Stiff where it counts with weight savings for maneuverability.
  • 1:5 Twist Rate: Stabilizes heavy .338 ARC projectiles for hunting and duty.
  • 416R Stainless Steel: Match-grade material for long-term accuracy.
  • Black Nitride Finish: Corrosion and wear resistant with low maintenance.
  • Pistol-Length Gas System: Smooth cycling in SBR/pistol-style AR builds.
  • 5/8x24 Muzzle Threads: Compatible with many suppressors and muzzle devices (verify rating).
  • Individually MPI & Headspaced: Each barrel inspected and headspaced with PTG gauges.

Specifications

Caliber / Chamber
.338 ARC
Length
11.5"
Twist Rate
1:5 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
1.08 lbs
Crown
11° Target Crown

Important Product Note

Some customers may need to adjust their upper receiver feed ramps to ensure reliable feeding, particularly when using Hornady Sub-X ammunition. For best results, Faxon recommends using Duramag magazines designed for 400 Legend. We also recommend pairing this barrel with our .338 ARC optimized upper to minimize fitment work. Always verify compatibility with your upper receiver and consult a qualified gunsmith if needed. Faxon Firearms is not responsible for issues resulting from improper installation or non-recommended component pairing.

Frequently Asked Questions

What makes the Gunner Profile unique?
It merges the Gov’t profile’s strength with the Pencil contour’s weight savings—resulting in excellent balance and reduced shooter fatigue for compact builds.
Is this barrel compatible with a standard AR-15 upper?
Yes, but .338 ARC requires the correct bolt and magazines. To reduce upper ramping or feeding issues we recommend our optimized .338 ARC upper.
Can I use this barrel with a suppressor?
Yes. The 5/8x24 thread pitch supports many suppressors rated for similar calibers — verify suppressor caliber rating before use.

Overview: 11.5" Match Series Gunner Profile .338 ARC Barrel

The Faxon Match Series 11.5" .338 ARC Barrel is engineered for compact AR platforms that still demand match-grade accuracy. With a durable Black Nitride finish, button-rifled 1:5 twist, and the balanced Gunner profile, this barrel suits hunting, duty, or short-range precision use.

Manufactured in Cincinnati, Ohio, each Faxon Match barrel is stress-relieved, air-gauge tested, MPI inspected, and individually headspaced with PTG gauges for consistent performance every time.

Barrel Material:
416-R Stainless
Barrel Type:
Button Rifled
Caliber:
338 ARC
Barrel Twist:
1:5
Barrel Length:
11.5"
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