FAXON DUTY SERIES PENCIL PROFILE 16" MID-LENGTH .308 WIN AR10 BARREL
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FAXON DUTY SERIES PENCIL PROFILE 16" MID-LENGTH .308 WIN AR10 BARREL
Faxon Duty Series AR10 Barrel — Pencil Profile 16" .308 Win (1:10 Twist, Mid-Length Gas)
4150 CMV steel • Standard button rifled • Salt bath nitride (QPQ) inside & out • Pencil profile • Black oxide extension • 11° target crown (non-recessed) • Mid-length gas • .750" gas block journal • 1.1" journal length • 5/8x24 TPI • MPI inspected
The Faxon Duty Series Pencil Profile 16" .308 Win AR10 barrel is built for shooters who want the lightest possible .308 AR without giving up duty-grade durability. With a mid-length gas system and a 16-inch length, this barrel balances fast handling with smooth cycling—ideal for compact AR10 builds where weight and maneuverability matter.
Duty Series barrels begin with 4150 CMV steel and standard button rifling, then receive QPQ salt bath nitride inside and out for corrosion resistance and long service life. The Pencil profile is precisely tapered to remove unnecessary weight while maintaining practical rigidity for real-world use.
Proudly American-made by a family-owned manufacturer in Greater Cincinnati, Ohio, this barrel is backed by Faxon quality and built to run hard.
Key Benefits
- Ultra-light Pencil contour: Built for maximum weight savings and fast handling.
- 4150 CMV steel: Duty-grade strength and thermal stability.
- QPQ nitride inside & out: Corrosion and wear resistance for long service life.
- Mid-length gas: Smooth cycling and balanced recoil on 16" AR10 builds.
- 11° target crown (non-recessed): Clean shot exit for consistent performance.
- 5/8x24 muzzle threads: Standard interface for .30-cal muzzle devices and suppressors (verify alignment/mount specs).
- MPI inspected: Quality control focused on dependable performance.
Ideal Use Cases
- Lightweight .308 AR10 builds: Keep total rifle weight down without sacrificing durability.
- Hunting & field rifles: Easier carry with quick handling in tight terrain.
- Range & training carbines: QPQ protection helps resist corrosion and wear.
- Suppressor-ready setups: 5/8x24 threads support 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
Why choose a Pencil profile .308 AR10 barrel?
What does mid-length gas do on a 16" .308 build?
Is this compatible with DPMS / LR-308 pattern receivers?
Is it suppressor-ready?
Warranty: Backed by the Faxon Lifetime Guarantee. Full details available at https://faxonfirearms.com/warranty-privacy-terms/
Warranty Faxon Lifetime Guarantee. Covers manufacturing and material defects to the original purchaser. Excludes damage from misuse, neglect, non-standard ammunition, or modifications. Register your product at faxonfirearms.com/product-registration to expedite service. For purchases through dealers or distributors, warranty repairs are handled directly by Faxon Firearms; refunds must be processed through the selling entity. Full policy: faxonfirearms.com/warranty-privacy-terms/