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Faxon Firearms Match Series Gunner Profile Barrel — .338 ARC, 16", Pistol-Length Gas, AR-15 Fit, Nitride, Black (15B338A8C16NGQ-5R-NP3) — Informational Overview
The Faxon Firearms Match Series Gunner Profile Barrel in .338 ARC is an AR-15–pattern barrel configured with a 16-inch length and a pistol-length gas system. This barrel is listed with a black nitride finish and is identified by part number 15B338A8C16NGQ-5R-NP3 (also shown in some listings as 15B338A8C16NGQ5RNP3) and UPC 816341028869. As part of Faxon’s Match Series, the product line is generally positioned as performance-focused, with manufacturing intent centered on consistency and repeatable results (exact features and tolerances are SKU-specific).
Because newer chamberings and non-standard gas system pairings can be sensitive to overall build configuration, users typically confirm the manufacturer’s complete technical specifications for this exact SKU—such as twist rate, chamber details, gas port sizing, and recommended operating components—before final assembly.
Key Identifiers
Manufacturer: Faxon Firearms
Series: Match Series
Profile: Gunner
Caliber/Chambering: .338 ARC
Barrel Length: 16 inches
Gas System Length: Pistol length
Platform Fit: AR-15
Finish: Nitride, Black
Part Number / MPN: 15B338A8C16NGQ-5R-NP3 (also listed as 15B338A8C16NGQ5RNP3)
UPC: 816341028869
.338 ARC Chambering: System-Level Compatibility Notes
This barrel is chambered in .338 ARC, a modern AR-platform cartridge. With modern chamberings, overall compatibility typically depends on more than the barrel alone. Users often confirm:
The required bolt type and compatibility for the cartridge family
Magazine fit and feed characteristics for the intended ammunition
Expected gas tuning needs based on load choice and operating configuration
Ammunition availability and load variety for the intended use
“Fits AR-15” refers to the barrel’s interface with AR-15 upper receivers; it does not automatically guarantee that all other components are correct for the chambering.
16" Barrel with Pistol-Length Gas: Configuration Considerations
A 16-inch barrel is a common general-purpose length in AR builds, often selected for balancing handling and ballistic performance (depending on cartridge and load). Pairing pistol-length gas with a 16" barrel can influence system dynamics and may require attention to:
Buffer weight and spring selection
Ammunition pressure characteristics and dwell time behavior
Gas port sizing and cycling consistency
Use with different muzzle devices and backpressure profiles
Suppressed vs unsuppressed setup (where applicable)
Because these factors can vary with the complete build, manufacturer guidance and post-assembly function testing are important for safe, reliable operation.
Gunner Profile: Weight Distribution and Practical Handling
Faxon’s Gunner profile is commonly described as a contour intended to offer balanced handling—reducing forward weight compared with heavier contours while maintaining practical stiffness. In general terms, profiles designed for balance can help avoid excessive front-heaviness while still supporting consistent use. The final feel depends on the handguard, gas block type, and muzzle device used in the build.
Black Nitride Finish: Durability and Maintenance
A nitride finish is commonly used on barrels to improve:
Surface hardness and wear resistance
Corrosion resistance compared with untreated steel
Ease of cleaning under routine use
Even with nitriding, standard maintenance practices—such as cleaning after use and protecting from prolonged moisture exposure—remain relevant.
SKU Identification: Punctuation Variants
This barrel appears in listings as 15B338A8C16NGQ-5R-NP3 and also as 15B338A8C16NGQ5RNP3. To confirm the correct item, users typically match:
UPC 816341028869
The configuration string: .338 ARC, 16", pistol-length gas, Gunner profile, black nitride
Installation, Safety, and Compliance Notes
Barrels are safety-critical components. Proper assembly typically involves:
Correct installation procedures and torque values
Verification steps appropriate to the build (including headspace checks where applicable)
Function checks and safe test procedures after installation
Compliance with all applicable laws regarding firearm configuration and use
If unsure about fitment, gas tuning, or assembly, many builders consult a qualified armorer or gunsmith.
Quick Reference Summary
Faxon Firearms Match Series Gunner Barrel
.338 ARC, 16", pistol-length gas
AR-15 fit
Black nitride finish
MPN: 15B338A8C16NGQ-5R-NP3 / 15B338A8C16NGQ5RNP3
UPC: 816341028869
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