Faxon Firearms 12.5″ GUNNER 6mm ARC Carbine 4150 1:7 Nitride / Melonite Barrel

Elevate your AR-15 build with the Faxon Firearms 12.5″ GUNNER 6mm ARC Carbine Barrel, engineered for precision shooters and tactical enthusiasts seeking compact power without sacrificing accuracy. This high-performance barrel delivers exceptional ballistic performance in the versatile 6mm ARC caliber, ideal for long-range shooting, hunting, and competitive applications. Crafted from durable 4150 steel with a robust Nitride/Melonite finish, it ensures reliability and longevity in demanding conditions.

Key Features

• Compact Design for Enhanced Maneuverability: At just 12.5 inches, the GUNNER profile balances lightweight construction with rigidity, reducing overall rifle weight for faster handling during dynamic scenarios.
• Advanced Rifling and Twist Rate: Features a 1:7 twist rate that optimally stabilizes heavy 6mm ARC projectiles like 108-grain ELD-M, promoting superior accuracy and flat trajectories out to 800 yards.
• Corrosion-Resistant Finish: The Nitride/Melonite treatment provides a hard, slick surface that resists wear, eases cleaning, and extends barrel life, addressing common concerns about maintenance in harsh environments.
• Carbine-Length Gas System: Ensures smooth, reliable cycling across a wide range of ammunition loads, minimizing recoil and gas blowback for comfortable, consistent operation.

Specifications

• Caliber: 6mm ARC
• Barrel Length: 12.5 inches
• Material: 4150 Steel
• Twist Rate: 1:7
• Gas System: Carbine
• Finish: Nitride/Melonite
• Profile: GUNNER
• Weight: Approximately 20.16 oz
• Threading: 5/8×24 (standard for muzzle devices and suppressors)

Why Choose This Product

For shooters frustrated with bulky setups that hinder mobility, this Faxon barrel solves that by offering a compact form factor that maintains sub-MOA potential with match-grade ammo. Its 4150 construction withstands high-volume fire, while the Melonite finish combats fouling and corrosion—perfect for field use or range days. Users praise its consistent grouping and versatility with factory Hornady loads, making it a smart upgrade for AR-15 platforms chasing precision in a smaller package. Whether you’re dialing in long-distance targets or pursuing game ethically, this barrel enhances your setup’s performance and confidence.

Ready to optimize your rifle? Integrate the Faxon 12.5″ GUNNER 6mm ARC Barrel today and experience the difference in accuracy and handling that top-tier engineering provides.

Frequently Asked Questions

What types of ammunition work best with this barrel?

The 1:7 twist excels with heavier 6mm ARC bullets (95-108 grains), delivering tight groups and high velocity. It’s compatible with factory loads like Hornady 108gr ELD Match for reliable performance.

Is this barrel suitable for suppressed use?

Yes, the 12.5-inch length and carbine gas system pair well with suppressors, reducing signature while maintaining cycle reliability—ideal for tactical or hunting setups.

How does the GUNNER profile benefit my build?

The GUNNER profile tapers strategically for reduced weight up front without compromising harmonics, improving balance and heat dissipation for extended sessions.