FAXON DUTY SERIES GUNNER PROFILE 20" RIFLE-LENGTH .308 WIN AR10 BARREL
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FAXON DUTY SERIES GUNNER PROFILE 20" RIFLE-LENGTH .308 WIN AR10 BARREL
Faxon Duty Series AR10 Barrel — Gunner Profile 20" .308 Win (1:10 Twist, Rifle Gas)
4150 CMV steel • Standard button rifled • Salt bath nitride (QPQ) inside & out • Gunner profile • Black oxide extension • 11° target crown (non-recessed) • Rifle-length gas • .750" gas block journal • 1.9" journal length • 5/8x24 TPI
The Faxon Duty Series Gunner Profile 20" .308 Win AR10 barrel is built for dependable real-world performance—where accuracy, durability, and repeatability matter more than hype. This is a purpose-driven barrel for hard use, training volume, and field-ready builds that still want the smoothness of rifle-length gas and the balanced handling of the Gunner contour.
Duty Series barrels are machined from 4150 CMV steel with standard button rifling, then treated with salt bath nitride (QPQ) inside and out for corrosion resistance and long service life. The 11-degree target crown (non-recessed) supports clean, repeatable bullet exit—ideal for consistent groups across a wide range of .308 loads.
Proudly American-made by a family-owned manufacturer in Greater Cincinnati, Ohio, this barrel is engineered for the builders who want a rugged, reliable .308 AR10 foundation—without sacrificing practical accuracy.
Key Benefits
- Duty-grade steel: 4150 CMV is built for heat, volume, and hard use.
- QPQ nitride inside & out: Corrosion resistance and wear protection for long service life.
- Gunner profile balance: Designed to keep the rifle lively while maintaining practical rigidity.
- Rifle-length gas: Smooth recoil impulse and broad tuning range for 20" .308 builds.
- 11° target crown (non-recessed): Clean, consistent shot exit for repeatability.
- 5/8x24 threads: Standard interface for .30-cal muzzle devices and suppressors (verify alignment/mount specs).
- Built for a different use case: Duty Series prioritizes rugged reliability and value for real-world conditions.
Ideal Use Cases
- General-purpose .308 AR10 builds: A durable 20" setup with smooth rifle-gas cycling.
- High-round-count training: CMV + QPQ for heat and longevity.
- Field rifles & working guns: Balanced handling with dependable performance.
- Suppressor hosts: 5/8x24 supports common .30-cal devices (verify suppressor rating and alignment).
Specifications
Build note: Always verify receiver/bolt compatibility, headspace, and muzzle-device alignment prior to use.
Frequently Asked Questions
How is Duty Series different from Match Series?
What is the Gunner profile?
Is this barrel suppressor-ready?
Will this fit DPMS / LR-308 pattern receivers?
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