OE-SPEC 5.56 13.9” Mid Gas AR15 Barrel, Nitride

SKU:
121-0103-009
$124.95
(4 reviews)
Current Stock:
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VALUE-LINE 5.56 13.9” Mid Gas AR15 Barrel 

Chamber- 5.56 NATO

• Length- 13.9"

• Gas system- Mid length 

• Gas Block Size- .750

• Threads- 1/2x28

• Finish- Nitride

• Twist- 1:7

• Material- 41V50 Chrome Moly Vanadium

• Extension- M4 Feed Ramps 

• Marked for Caliber and Twist

• Weight- 26.08 OZ

• Barrel is Dimpled for Gas Block Set Screw 

• Fully Made In House From KAK Industry Produced Blanks

All Barrels Are Air Gauge Inspected for Correct Bore Size & Tolerances, completed Barrels are Inspected for Proper Headspace using Calibrated Gauging.  

 

 

Length:
13.9"
Caliber:
5.56
Finish:
Nitride
Platform:
AR15
Tags:

Reviews

  • 5
    Quad rail build

    Posted by Jose Aldaba on August 27, 2026

    Used this barrel on for a quad rail recce build, has a good weight to it and handles heat very well. Was well over 200rnds before it started to feel “hot”. And very good quality for an affordable barrel. Would recommend and purchase again.

  • 5
    13.9 inch 556 barrel

    Posted by Jordan on July 2, 2026

    Great barrel for the price, definitely will be using their barrels again

  • 5
    Great Barrel

    Posted by Dmax on June 28, 2026

    Love the accuracy of this barrel. Added an adjustable gas block and a ASR muzzle brake. Running it exclusively with a suppressor and FRT - no complaints. Everything I’ve purchased from KAK has exceeded my expectations. . Great work!

  • 5
    Great Barrel

    Posted by Tracy on July 27, 2022

    Great barrel fit and finish, installed easy and matched up nicely with a pinned & welded SOLGW NOX flash hider to bring it to legal length. Barrel design with weight in the chamber area makes the rifle balance nicely and not front heavy