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Faxon Firearms Match Series Gunner Profile Barrel — .338 ARC, 14.5", Pistol-Length Gas, AR-15 Fit, Nitride, Black (15B338A8P145NGQ-5R-NP3) — Informational Overview
The Faxon Firearms Match Series Gunner Profile Barrel in .338 ARC is an AR-15–pattern barrel configured with a 14.5-inch length and a pistol-length gas system. This barrel is listed with a black nitride finish and is identified by part number 15B338A8P145NGQ-5R-NP3 (also shown in some listings as 15B338A8P145NGQ5RNP3) and UPC 816341028852. As part of Faxon’s Match Series, this product line is generally positioned for users who want performance-focused barrel specifications and consistent manufacturing controls (exact attributes depend on the specific SKU’s technical sheet).
Because newer chamberings and short gas-system configurations can be sensitive to complete-build details, users typically confirm the manufacturer’s full specification set for this exact SKU—such as twist rate, chamber details, gas port sizing, and recommended operating components—before finalizing a build.
Key Identifiers
Manufacturer: Faxon Firearms
Series: Match Series
Profile: Gunner
Caliber/Chambering: .338 ARC
Barrel Length: 14.5 inches
Gas System Length: Pistol length
Platform Fit: AR-15
Finish: Nitride, Black
Part Number / MPN: 15B338A8P145NGQ-5R-NP3 (also listed as 15B338A8P145NGQ5RNP3)
UPC: 816341028852
.338 ARC Chambering: Build Compatibility Notes
This barrel is chambered in .338 ARC, a modern AR-platform cartridge. In practical build terms, chambering choice affects more than the barrel alone. Users commonly confirm:
Correct bolt compatibility required for the cartridge family
Appropriate magazine selection and feed reliability considerations
Expected gas tuning needs for the selected ammunition and configuration
Ammunition availability and load variety for the intended application
“Fits AR-15” refers to receiver interface compatibility; it does not automatically guarantee full system compatibility without the correct supporting components for the chambering.
14.5" Barrel Length with Pistol Gas: Configuration Considerations
A 14.5-inch barrel length is often selected to balance compact handling with useful barrel length, depending on the overall build. Pairing pistol-length gas with a 14.5" barrel can influence cycling behavior and may require careful attention to:
Buffer weight and spring choice
Gas port sizing and ammunition pressure curve
Use with different muzzle devices and backpressure characteristics
Suppressed vs unsuppressed configuration (where applicable)
Because these factors vary widely, following the manufacturer’s guidance for operating components and verifying reliable function after assembly is important.
Compliance Note (General)
In the United States, a 14.5" barrel can have legal implications depending on how a firearm is configured and whether a muzzle device is permanently attached to meet minimum barrel length rules. Laws vary by jurisdiction and configuration, so users typically confirm compliance requirements for their intended setup.
Gunner Profile: Weight Distribution and Handling
Faxon’s Gunner profile is commonly described as a contour intended to balance reduced weight with practical stiffness, aiming for a barrel that feels less front-heavy than heavier contours while remaining suitable for sustained use. Actual weight distribution depends on the rest of the build—handguard length, gas block type, and muzzle device mass can all significantly affect balance.
Black Nitride Finish: Durability and Maintenance
A nitride finish is commonly used to enhance:
Even with nitriding, regular maintenance practices still matter, especially after high round counts or exposure to moisture and fouling.
SKU Identification: Punctuation Variants in Listings
This barrel is referenced as 15B338A8P145NGQ-5R-NP3 and may also appear without punctuation as 15B338A8P145NGQ5RNP3. To ensure the correct item, users typically match:
UPC 816341028852
The core configuration: .338 ARC, 14.5", pistol-length gas, Gunner profile, black nitride
Installation, Safety, and Configuration Notes
Barrels are safety-critical components. Proper assembly generally involves:
Correct installation torque and procedures
Verification steps appropriate to the build (including headspace checks where applicable)
Post-installation function checks and safe testing
Compliance with all local and federal laws related to barrel length and firearm configuration
If unsure about compatibility or assembly, consulting a qualified armorer or gunsmith is common practice.
Quick Reference Summary
Faxon Firearms Match Series Gunner Barrel
.338 ARC, 14.5", pistol-length gas
AR-15 fit
Black nitride finish
MPN: 15B338A8P145NGQ-5R-NP3 / 15B338A8P145NGQ5RNP3
UPC: 816341028852
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