KAK Industry AR15 9MM Carbine Buffer Extended, Heavy 10 oz

It was counter-intuitive to me, but switching to a super heavy 10 oz buffer reduced felt recoil and doubled my rate of fire. I bought the 8" gen 4 PSA 9mm kit (everything minus the receiver), shot it about a 150 times and was kinda bummed. It was a slow pig with a lot of recoil. More than a 5.56 for sure, but no concussive blast of course. I felt like I could shoot way faster on target with my PF940V2 (Glock 17). Swapped out the buffer and now my AR9 shoots very nice.

Have one in my ar9 build and it works great...just purchased another for a new ar45 build...

Perfect weight on my PCC rifle with KAK 16" barrel and BCG. Installed with BCM intermediate receiver extension (A5), 308 AR rifle spring, and a buffer spacer. Shot 115 gr and 124 JHP without any issues.

Buffer seems well made. Smooth recoil and absolutely no gas to the face with the suppressor attached after switching to this weight buffer. The deadblow weights seem like the only way to go on a blowback platform.

Great quality as always.

I needed to get the reciprocating weight of my AR9 to 24oz, and his buffer fits the bill. I also eliminated the slight bolt bounce that I was experiencing. The fit and finish are solid. I plan on using this buffer for all my blowback builds.

No more bolt bounce. Less felt recoil.

This is the buffer for your 9mm builds, don't shop around buy this one Makes 'em run great, perfect weight for 9mm.

After ordering this piece and while waiting for the test fire I got worried doing more reading that my 16 inch Foxrrot Mike 9mm upper might blow up without a super elaborate adjustable moving weight buffer. But on the first test fire on an Anderson multi cal lower with this on a standard carbine spring the gun passed every function check and did rapid double and triple taps with no hiccups. 50 115 grain Tula and 50 124 grain Blazer Brass running through endomags. Still have to dig up some 147 grain to test but I’m pleased so far with the performance of a simple solid buffer. Also a Very smooth, comfortable recoil impulse.