AR15 5.56 / .300 Blackout BCG - Nitride

$119.95 $104.95
(38 reviews)
Current Stock:
Adding to cart… The item has been added
  • M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, BlackNitride Finish by H&M
  • Bolt is machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI’d
  • Firing pin is machined to the mil-spec print from 8740, precision ground, and chrome plated
  • One Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistance
  • Nitride Cam Pin
  • S7 tool steel ejector and extractor retaining pin
  • 4130 Gas Key, nitride, precision staked using our hydraulic staking machine
  • KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated


  • 5
    Great CS and Quality

    Posted by Kevin S. on August 8, 2023

    Cody from CS is goated with the sauce. Had an issue and when I wrote in I got a response pretty quickly. No questions asked they paid to get it shipped back and replaced, best customer service.

  • 5
    KAK 556 BCG

    Posted by Edgar on November 27, 2022

    I ordered this BCG for my CQB build. After the first run I was blown away with its performance. BUTTER. 10/10.

  • 5
    My baseline quality carier

    Posted by Steven on January 12, 2022

    I have a couple of these to replace some older BCG's on a couple rifles that got new barrels. I ended up buying a couple more for my 2 new builds. The coating makes them easy to clean, the gas rings are tight, and they always headspace well on the higher quality barrels. These are my base line of quality when it comes to BCG's for me. The only complaint I have is that I ordered the "Unmarked“ BCG's this most recent time, but they had the logo laser etched into them. I really don't care enough to change it/formally complain about it, so I won't take any stars off. The marking doesn't effect its capability in any way. Overall, I'm happy with them

  • 5
    Great price and value!

    Posted by harebare on April 19, 2021

    In this day and time, I couldn't resist purchasing this bolt carrier group. Was of excellent quality, finish and function. I want another one!

  • 5

    Posted by Johng on April 15, 2021

    Great product hard to find in-stock

  • 5
    Outstanding BCG at any price point

    Posted by rick on March 17, 2021

    I have more than a few of these plus a spare. They are comparable to BCGs at twice the price. The nitride finish when coupled with SLIP lubricants makes for a silky run and quick clean up.

  • 5
    Outstanding Bolt/Carrier Group

    Posted by BLP on December 16, 2019

    Outstanding fit and finish. I have purchased many of these over the years and have never experienced any issue. Also being nitride coated...clean up is quick.

  • 5
    Quality Product

    Posted by NB on June 16, 2019

    Very happy with function and finish.

  • 5
    I use these KAK BCGs on all my builds

    Posted by Brian on January 3, 2019

    I use this BCG on all my builds. The quality, function, and finish are well worth the amount paid for this BCG. It functions well, I've never had any issues extracting brass or failures of any kind. Nice smooth finish with perfect tolerances making the action very smooth. I would compare this BCG with other higher end manufacturers with an affordable price. Once you try it you will never go with anything else.