KAK Industry AR15 9MM Carbine Buffer Extended 8 oz

This is a great ar-9 buffer. Have bought and used many of these on builds. A must have.

No issues with it, and now no need for a buffer spacer

I think it will be a very solid buffer, I haven’t used it yet.

Put in a 10.5” PSA AR-V with standard buffer spring (uses CZ Scorpion type mags). Runs good. No failures. Bolt holds open fine with both PSA and Magpul mags. Very minimally affects felt recoil from the heavy bolt and direct blow back system but does it’s job at an affordable price in reducing the bolt travel. Very solid construction.

I have bought two of these now, I like that they are longer then a regular buffer and you don't have to have a spacer or stack quarters in your buffer tube so the bolt catch isn.t hit so hard when it locks back. I have one in a polymer lower and it takes a little stress of the lower where the Buffer tube screws in by slowing the bolt a bit.

The best buffet for a 9mm build. Used standard carbine spring and I did not have any FTF/FTE at all. Traveled back to lock up bolt hold open latch every time. I am extremely pleased with this purchase. Took a long time researching, the 8oz extended is the way to go.

That is a great product. But 9mm ar15s can be very finicky. It didnt work well with a stern defence glock mag adapter I believe because the extractor is positioned where it doesn't have enough time to eject fully before the bolt closes. Switched to the kak 5.5 oz 9mm buffer which is 100% reliable for my build.

Was in the process of building an ar9, and could not decide what buffer I needed, I tried using the standard ar buffer weight and it felt like it was going to launch it though the buffer tube and into my shoulder. A friend recommended I look at this one so I picked it up and could not be happier with it's performance.

Hi there. I recently built an AR in .45acp. I used this 8oz. Buffer and it cycles so smoothly.