KAK 9MM ENHANCED BCG

Bought this to use with a colt magazine pattern ar9 and works flawlessly. Only had one problem which was a weak firing pin (could've been a factory defect). The firing pin broke after 3 magazines, but KAK replaced the pin in 4 total days. Fantastic service and the BCG has worked perfectly for over 1000 rounds after the replacement so far. The service alone is worth getting the BCG, but overall a great product from a great company.

Excellent design and flawless execution. I am a retired law enforcement officer, turned machinist and gunsmith. To say that I notice every detail would be an understatement ! Machine work and finish are superb. The key is properly staked and the threaded retention pin for the AR15 pattern extractor is a cleaver touch. Perfect function with Colt pattern lower receiver.

Paired with the KAK 16" 9mm AR barrel, work 100% so far. Will get another one for sure.

Excellent built just what I was looking for

I have built numerous 9mm AR15s and consider this the best BCG on the market. Both of mine weigh in right at 15.45oz so thw weight is a little heavier than some and a little lighter than others. Love the standard AR15 extractor feature, makes more sense than the 1911 style some use. This BCG also works without and modifying to my Mean Arms Adapter. That can't be said for some 9mm BCGs I've tried. Price isn't the cheapest but I've had to send some of the cheaper BCGs back. I prefer quality and so far my two KAK 9mm BCGs have been flawless. Same with the 40 cal and two 45 cal versions I have.

Bought this to pair with KAK 5.25” value line upper. Quality fit and finish. Would buy again and recommend to a friend

I have not had a single problem with this bolt carrier group. It's very well-made and the finish is nice as well. I have used brass and Steelcase ammo without any issues.

Looks well made. Ran great. Same size as a standard 556 bolt so it doesn't over travel and slam the bolt catch like shorter 9mm bolts. You can use a regular carbine spring and and runs great with h2, h3, or 5.5 oz 9mm buffer.

I have ordered several custom products from KAK over the last several years. Each was a solution to a tough problem with limited competition. In other words, KAK could have pretty much sold me anything because there was no alternative. To KAK's credit every product has been very high quality at a reasonable price and solved my problem with elegance. This 9 mm bolt was the same, excellent design, execution, finish, and operation. This unit replaced another manufacturer's product which was malfunctioning. The other manufacturer was given the opportunity but ultimately declined to back up their product. The product received from KAK was superior in every way AND it worked. I'm very pleased with KAK's products.