OE-SPEC Contract 45ACP 16" AR15 Barrel- Nitride

(15 reviews)
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Contract 45ACP 16" AR15 Barrel- Nitride

• Chamber- 45 ACP

• Length- 16"

• Threads- .578x28

• Finish- Melonite

• Twist- 1:16

• Material- 41V50 Chrome Moly Vanadium

• Marked for Caliber and Twist

• Weight-  22.08 OZ

• Fully Made In House From KAK Industry Produced Blanks

Taper profile As a high volume contract manufacturer for the firearms industry, KAK is able to leverage its machining capacity to bring the same quality parts that we provide to some of the biggest names in the industry, straight to the retail customer.  We manufacture our barrels from the raw material all the way to the complete product, all under our own roof.  Our barrels are fully inspected through the entire process, including air-gauging the bores, physical measurements of the threads and outer diameters, and 100% gauging of the headspace tolerance.  Our OE-Spec line provides you with the quality you demand and the value you desire.

45 ACP
AR15 Pistol Caliber


  • 5
    45ACP 16" Barrel

    Posted by Richard on March 6, 2024

    Excellent quality, perfect for my build. Fast shipping. Will be back for more.

  • 5
    45ACP 16'' Barrel

    Posted by Aces High on March 1, 2024

    First time purchased, awesome barrel, excellent service.

  • 5
    great barrel

    Posted by brian on January 21, 2024

    it's a nice barrel shoots good

  • 4
    Nice quality. Having some feeding issues.

    Posted by Matt on March 15, 2023

    Purchased 16in barrel and tungsten weighted bcg to go with it. Fit and finish looks awesome but unfortunately I'm having feeding issues on almost every mag. Hoping it just needs a break in period. When it doesn't ftf it is very accurate. The round will chamber about half way and get stuck. I've tried 10oz buffer and 8ounce buffer and seems to run better with the 10oz at this point.

  • 5
    Great product

    Posted by Billy on January 4, 2023

    Assembled the rifle and went to the range. First three rounds had one FTF. Disassembled and added more CLP.. Next three fired fine. Loaded a full mag and shot flawlessly....my new favorite rifle!

  • 5
    45 acp

    Posted by Robert on November 2, 2022

    Good barrels

  • 5
    Great Value

    Posted by Brice on October 11, 2022

    Bought this for a parts/fun PPC platform. No work needed for the ramp into the chamber for feed rounds. Currently have 50 rounds through it and seems to have pretty good grouping for what I can accomplish.

  • 5
    Have confidence in your purchase with KAK

    Posted by Richard on September 13, 2022

    Excellent customer service! KAK stands behind their products, purchase with confidence.

  • 5
    would buy again

    Posted by Michael on August 1, 2022

    I have purchased a lot of products from KAK and all have been of high quality and fit and function has be on point. Although i have not had the chance to install this barrel yet , its not my 1st barrel from KAK and ill come back after i put a couple hunred rounds threw it to give another review! ;>)