Faxon Limited Edition 16" Duty Series SOCOM Profile, 5.56 NATO, Nitrided, 5R

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(4 reviews)
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Manufactured in-house, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. 

Quality is imbued into our barrels from the start. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges. 

  • Barrel Material: 4150 CMV
  • Barrel Type: Button Rifled - 5R
  • Barrel Caliber: 5.56 NATO
  • Barrel Twist: 1:8
  • Barrel Length: 16"
  • Barrel Profile: Socom
  • Barrel Gas System: Mid Length
  • Inside Finish: Nitride
  • Outside Finish: Nitride
  • Muzzle Thread: 1/2-28 TPI
  • Gas Block Diameter: .750"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: M4
  • Weight: 1.65 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown
Barrel Material:
4150 CMV
Barrel Type:
5R Button Rifled
Barrel Caliber:
5.56 NATO
Barrel Length:
Barrel Twist:
Barrel Profile:
Barrel Gas System:
Mid Length
Inside Finish:
Salt Bath Nitride
Outside Finish:
Salt Bath Nitride
Muzzle Thread:
Gas Block Diameter:
Gas Block Journal Length:
Barrel Extension:
Barrel Weight:
1.65 Lbs
Crown Type:
Recessed 11-degree Target Crown


  • 5
    16" SOCOM 5R

    Posted by JOSHUA BRESSEL on Apr 28th 2024

    Spectacular barrel, which I'm used to seeing from Faxon, at a great price. I waited until I could test this one to review, though I have several of their excellent barrels. Printed .4 MOA groups with Mk262 Mod 0 77gr, and .35 MOA with Mk312 MOD1 SOST. Even M855 grouped well at .9 MOA. I'm extremely impressed.

  • 5
    Great barrel

    Posted by Jaime Barrera on Feb 21st 2023

    This barrel is really good and is pretty accurate to 300 meters. I thought there were going to be heating issues but even with a suppressor on it I was able to ring a 4" steal plate at 300 meters. The quality is there as was the price. I got it on clearance which isn't bad at all.

  • 5
    16” SOCOM Barrel

    Posted by David Ahdoot on Feb 16th 2023

    When the barrel arrived it looked fine, especially considering the very low price. When I went to install it, I noticed the bore was very dirty, so I thought it would be easier to clean before I installed it. Darn thing took four kinds of cleaner, dozens of patches and nearly an hour get clean. The rest of the installation was a breeze. I took it out to sight-in the new rig, I was amazed at the accuracy! Quarter sized groups at 50 yards with PMC 55 grain 556 ball! Very pleased with my purchase!

  • 4
    16 inch 223/5.56 bbl

    Posted by David on Jan 11th 2023

    Excellent quality-works well-3rd barrel I’ve purchased and nothing but quality thru out