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

SKU:
121-0103-009
$124.95
(3 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
    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