Faxon Duty Series 8.5 inch 9mm AR barrel, light tapered blowback design

FAXON DUTY SERIES LIGHT TAPERED 8.5" 9MM BLOWBACK AR15 BARREL

Faxon
SKU:
15A910N8NLQ
|
UPC:
816341020788
Availability:
Usually ships in 1-2 business days
$125.00
(11 reviews)
Current Stock:
Description

Faxon Duty Series — 8.5" Light Tapered 9mm AR Barrel (Blowback)

4150 CMV Steel • Light Tapered Profile • 1:10 Twist • Nitride Finish • 1/2x28 Threads • Glock & Colt Compatible

The Faxon Duty Series 8.5" 9mm AR Barrel is engineered for precision and reliability in pistol caliber carbines (PCCs) and AR9 builds. Featuring Faxon’s Light Tapered Profile, this barrel delivers a perfect balance of durability, weight, and performance for fast-handling 9mm platforms.

Crafted from 4150 CMV steel and Nitride treated inside and out, it resists fouling and corrosion while maintaining accuracy over high round counts. Compatible with both Glock and Colt feed ramps, it offers broad compatibility across AR9 receiver styles.

Key Benefits

  • Optimized for AR9 Builds: Designed for blowback operation in pistol caliber carbines.
  • Light Tapered Profile: Reduces forward weight for faster transitions and better handling.
  • 4150 CMV Steel: Military-grade durability and heat tolerance.
  • Nitride Finish: Corrosion resistant inside and out for easy maintenance.
  • Precision QC: Fully stress relieved, air-gauge tested, and headspace verified.
  • Glock & Colt Compatible: Works with a wide range of PCC components and bolts.

Specifications

Caliber / Chamber
9mm SAAMI
Length
8.5"
Twist Rate
1:10 Right-Hand Twist
Profile
Light Tapered (Pistol Caliber)
Operating System
Blowback
Material
4150 CMV Steel
Rifling Method
Button Rifled
Finish
Salt Bath Nitride (Inside & Out)
Muzzle Threads
1/2x28 TPI
Gas Block / Port
N/A (Blowback System)
Barrel Extension
Glock & Colt Compatible Feed Ramps
Weight
0.81 lbs
Crown
11° Target Crown

Frequently Asked Questions

Is this barrel compatible with Glock-style and Colt-style AR9s?
Yes. The feed ramps are designed to function with both Glock and Colt pattern AR9 bolts and receivers.
Does this barrel require a gas block or gas system?
No. This barrel uses a simple blowback design and does not require a gas block or tube.
What muzzle devices fit this barrel?
Any 9mm-compatible muzzle device threaded 1/2x28 TPI will fit this barrel.

Overview: 8.5" Duty Series Light Tapered 9mm AR Barrel

The Faxon Duty Series 8.5" Light Tapered 9mm barrel delivers exceptional balance and reliability for AR9 and PCC platforms. Constructed from 4150 CMV steel with a Salt Bath Nitride finish, this blowback barrel is built for accuracy and endurance.

Featuring a light tapered profile for weight reduction and Glock & Colt compatibility, this Faxon 9mm barrel ensures flawless function for competitive shooting, range use, or personal defense builds.

Additional Information
Barrel Material:
4150 CMV
Barrel Type:
Button Rifled
Caliber:
9mm
Barrel Length:
8.5"
Barrel Twist:
1:10
Barrel Profile:
Pistol Caliber Taper
Barrel Gas System:
N/A - Blowback
Inside Finish:
Salt Bath Nitride
Outside Finish:
QPQ Nitride
Muzzle Thread:
1/2x28
Gas Block Diameter:
N/A
Gas Block Journal Length:
N/A
Barrel Extension:
Colt & Glock Compatible Feed Ramps
Weight:
.81 lbs
Crown Type:
Recessed 11-degree Target Crown
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Reviews

  • 5
    Great and accurate product

    Posted by stephen on Dec 28th 2021

    I put this on my AERO EPC and with 147gr bullets it shoots a 1.5 inch group at 30 yards!

  • 3
    Feeding /extracting issues

    Posted by Tim on Nov 28th 2019

    Purchased to replace another barrel that was not reliable in feeding Federal HST based off of friends and reviews. HST would hang up at 6 position of chamber entrance as well as FMJ flat tip ammo. Will have to try and polish that area and see if that will fix it. Using Spikes Glock lower with a Spikes Upper with Faxon 9mm bolt. Other issue that turned up was failure to extract issues, this never happened with the other manufacture barrel in it. Any suggestions to get reliability with HST ammo would be appreciated.

  • 5
    Fantastic

    Posted by David on Mar 21st 2019

    Great barrel very accurate, great looks

  • 5
    Great product

    Posted by Lez on Apr 16th 2018

    I must say that this barrel surpassed my expectations. The finish is beautiful and it has performed flawlessly at the range. Packaging was great and it arrived in a timely manner. I am very happy I went with this barrel for my build.

  • 5
    8.5" 9mm Barrel

    Posted by Joe on Nov 6th 2017

    The quality of the barrel is excellent and shipping was quick. I am very satisfied with the range results @ 50 yds. It shoots much more accurate than I do. Would highly recommend for the price.

  • 5
    Great 9mm barrel

    Posted by kristoher on Jan 30th 2017

    Put together a 9mm pistol and the barrel is 1" at 25 yards accurate and fed everything from FMJ's to gaping hollow points, 115,124, 147 and plus P. Extremely happy with it.

  • 5
    pleased

    Posted by Michael Martin on Jan 30th 2017

    Barrel is beautifully milled and finished, it fit a little loose in my Aero Precision upper. Plan to use Permatex hi temp sleeve retainer compound to insure tightest fit. best value for the money. Mike

  • 5
    Faxon 8.5" 9mm blow back barrel

    Posted by Peter on Jan 10th 2017

    I have to say that the finish quality is superb. The barrel is well made, and the cost is excellent. Great job Faxon!

  • 5
    Best bang for your buck.

    Posted by Big Gib on Sep 20th 2016

    The fit and finish is great. Can't beat the price. And performs great. I just wish it was a heavier profile, being so short, it wouldn't add much weight, but add accuracy and reduce heat build up. Don't hesitate to buy!