Faxon Duty Series 16 inch Gunner Profile .308 Win AR10 barrel, mid-length gas, QPQ nitride

FAXON DUTY SERIES GUNNER PROFILE 16" MID-LENGTH .308 WIN AR10 BARREL

Faxon
SKU:
10A810M16NGQ
|
UPC:
816341023260
Availability:
Usually ships within 2 business days.
$236.00
(4 reviews)
Current Stock:
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Description

 

Faxon Duty Series AR10 Barrel — Gunner Profile 16" .308 Win (1:10 Twist, Mid-Length Gas)

4150 CMV steel • Button rifled • Salt bath nitride (QPQ) inside & out • Gunner profile • 11° target crown (non-recessed) • Mid-length gas • .750" gas block journal • 5/8x24 TPI • LR-308 / DPMS compatible

The Faxon Duty Series Gunner Profile 16" .308 Win AR10 barrel is built for shooters who want a fast-handling, do-it-all .308 carbine without giving up real-world durability. This mid-length gas setup balances dwell time and recoil impulse for a smoother, more controllable AR10 while keeping the overall package compact.

Duty Series barrels are machined from 4150 CMV steel and feature traditional button rifling for proven accuracy and long service life. A salt bath nitride (QPQ) treatment inside and out helps resist corrosion and wear in harsh conditions and high-round-count training.

The Gunner profile is engineered for balance—keeping strength where it matters while reducing unnecessary forward weight for quicker transitions. Like every Faxon barrel, it’s proudly American-made by a family-owned manufacturer in Greater Cincinnati, Ohio.

Key Benefits

  • Duty Series construction: 4150 CMV steel built for dependable performance in real-world conditions.
  • QPQ nitride inside & out: Corrosion resistance and wear protection for long-term service life.
  • Gunner profile balance: Strength where you need it with reduced forward weight for faster handling.
  • Mid-length gas system: Helps deliver smoother cycling and a more controlled recoil impulse in a 16" .308 build.
  • Standard muzzle threads: 5/8x24 supports common .30-cal muzzle devices and suppressor mounts (verify alignment/mount specs).
  • .750" gas block journal: Compatible with most common low-profile gas blocks.

Ideal Use Cases

  • Lightweight AR10 carbines: A 16" .308 barrel tuned for practical handling and balance.
  • Training & high-round-count use: QPQ nitride helps resist wear and corrosion over time.
  • General-purpose .308 builds: Great for range, field, and practical shooting roles.
  • Suppressed-ready setups: 5/8x24 muzzle threads for popular .30-cal mounts (always verify suppressor caliber rating and alignment).

Specifications

Platform / Series
AR10 — Duty Series
Caliber
.308 Win
Length
16"
Profile
Gunner (Big Gunner)
Twist Rate
1:10 RH
Material
4150 CMV Steel
Rifling
Button Rifled
Finish
Salt Bath Nitride (QPQ) — inside & out
Gas System
Mid-length
Gas Block Diameter
.750"
Gas Block Journal Length
1.9"
Muzzle Threads
5/8x24 TPI
Extension
LR-308 / DPMS Compatible — Black Oxide Extension
Crown
11° Target Crown (non-recessed)
SKU
10A810M16NGQ
MSRP
$236.00

Build note: Always verify receiver/bolt compatibility, headspace, and muzzle-device alignment prior to use.

Frequently Asked Questions

What is the Gunner (Big Gunner) profile?
A balanced contour designed to keep strength where it matters while reducing forward weight for better handling and heat management in practical .308 builds.
Why choose mid-length gas on a 16" .308 AR10 barrel?
Mid-length gas can help balance dwell time and recoil impulse for smoother cycling and a more controllable feel in a 16-inch .308 setup (tuning may vary by ammo and build).
Is this barrel compatible with DPMS / LR-308 pattern receivers?
Yes. This barrel is designed for LR-308 / DPMS-pattern builds. Always confirm compatibility with your receiver set, bolt, and gas components.
Can I run a suppressor on this barrel?
Yes. The 5/8x24 muzzle threads support most .30-cal muzzle devices and suppressor mounts. Verify suppressor caliber rating and confirm alignment before firing.

Warranty: Backed by the Faxon Lifetime Guarantee. Full details available at https://faxonfirearms.com/warranty-privacy-terms/

 

 

Warranty
Backed by the Faxon Lifetime Guarantee. See full warranty details here: https://faxonfirearms.com/warranty-privacy-terms/
Additional Information
Barrel Material:
4150 CMV
Barrel Type:
Button Rifled
Caliber:
.308 WIN
Barrel Length:
16"
Barrel Twist:
1:10
Barrel Profile:
Big Gunner
Barrel Gas System:
Mid
Outside Finish:
QPQ Nitride
Muzzle Thread:
5/8x24
Gas Block Diameter:
.750"
Gas Block Journal Length:
1.9"
Barrel Extension:
LR-308 (DPMS Compatible)
Barrel Weight:
1.91 lbs
Crown Type:
Recessed 11-degree Target Crown
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Reviews

  • 5
    Performance Exceeded Expectations

    Posted by Matthew Bradbury on Sep 9th 2024

    This 16" barrel blows my OEM 20" out of the water. I almost gave up on the AR10 this went on but I have renewed faith in it now. Thank you Faxon!

  • 5
    The 16” 308 pencil barrel

    Posted by Lee on Mar 21st 2023

    Install on barrel was as easy as it gets, no malfunctions, timed suppressor within 15 rounds, accuracy was very good. I’m very pleased with the performance and overall quality of the product.

  • 5
    Faxon 16" 308 Big Gunner Barrel

    Posted by Dave on Nov 21st 2020

    This Big Gunner is my 3rd Faxon barrel. I've tried other barrels with some costing considerably more and Faxon has them all beat. Every Faxon barrel has been dead on right out of the box. No reason to use any other. Happy customer !

  • 5
    Pleasantly surprised

    Posted by Beika on May 8th 2018

    SA adjustable gas block and remainder mostly aero parts. Very balanced setup due to the light profile. Accuracy: 1 -1.2 175gr SMK Various loads including GMM, 0.5 168gr SMK GMM, did not like m80 loads. The SA gas block was not able to adjust via bleed off...had to dial in using restrictive setting. Overall very pleased with the performance and weight of this barrel.