Faxon Match Series 12.5" Gunner 6MM ARC Carbine-Length

Faxon Match Series 12.5″ Gunner 6mm ARC Carbine-Length Barrel – NP3 Extension

Precision-Machined Performance for the 6mm ARC Platform

The Faxon Match Series 12.5″ Gunner 6mm ARC Barrel (SKU: 15BARC75C12NGQ-5R-NP3) brings match-grade precision and exceptional handling to AR-15 builders who demand performance in a compact, versatile format. Designed, machined, and finished entirely in-house by Faxon Firearms in Cincinnati, Ohio, this barrel represents the perfect balance between accuracy, weight, and reliability for modern 6mm ARC platforms.

Match Series Quality – Built for Accuracy

Every Match Series barrel begins with certified 416-R stainless steel, honed and lapped for superior bore finish and uniformity. The 5R rifling design reduces bullet deformation and fouling while maintaining consistent pressure and velocity, shot after shot. Faxon’s precision button rifling and stringent quality control ensure sub-MOA accuracy potential with quality ammunition.

Gunner Profile – Lightweight, Rigid, Balanced

Faxon’s proprietary Gunner profile combines the durability of a government profile with the reduced forward weight of a pencil contour. This geometry improves heat management and rifle balance, making it ideal for tactical, hunting, or competition use. The 12.5″ length provides an optimal blend of velocity retention and maneuverability—perfect for carbine builds and compact precision setups.

Optimized for 6mm ARC Performance

The carbine-length gas system ensures smooth cycling and reliability across a broad range of loads, from lighter varmint rounds to heavier long-range bullets. Chambered specifically for 6mm ARC (Advanced Rifle Cartridge), this barrel offers flatter trajectories, superior retained energy, and long-range performance in an AR-15-sized platform.

Premium Materials & Surface Treatments

Each barrel is crafted from 416-R stainless steel with a QPQ black nitride finish inside and out for corrosion resistance and easy maintenance. The NP3-coated barrel extension provides a slick, durable interface between the bolt and extension, ensuring smooth lockup and consistent headspacing.

Faxon Match Series 12.5″ Gunner 6mm ARC Barrel Specifications

• Caliber: 6mm ARC
• Barrel Length: 12.5″
• Profile: Gunner
• Gas System: Carbine-length
• Gas Block Journal: .750″
• Twist Rate: 1:7.5” Right-Hand, 5R Rifling
• Material: 416-R Stainless Steel
• Finish: QPQ Nitride Inside & Out
• Extension: NP3 Coated
• Muzzle Thread: 5/8×24
• Weight: 1.33 lbs
• Manufactured In: Cincinnati, Ohio, U.S.A.

Why Choose Faxon Match Series from Arm or Ally

Arm or Ally is an authorized Faxon Firearms partner, providing only genuine Match Series barrels shipped directly from Faxon’s U.S. manufacturing facility. Each barrel is individually inspected for concentricity, chamber finish, and gas port alignment—ensuring consistent accuracy and long-term reliability. Whether you’re building a compact carbine or a precision DMR-style rifle, the Faxon Match Series 12.5″ Gunner 6mm ARC Barrel delivers exceptional performance and value.

Shop Faxon Barrels & AR Components

Explore our full selection of Faxon Barrels and AR-15 Components available from Arm or Ally. All Faxon products are backed by a lifetime guarantee for craftsmanship and material integrity.