Products / 9mm Q AR15 Carbine Buffer


9mm-Q Buffer - 8.5 ounces - $65

9mm-Q Buffer + Wolff XP Spring


9mm-Q Buffer Only


The 9-Q is the original extended length heavy 9mm buffer, engineered from scratch, not a cheap knock-off. Field tested and proven for over ten years.

I developed the 9mm "Q" Buffer in response to a customer who was having a problem with broken bolt catches on his Colt 9mm rig. He was already using a special (and more expensive) buffer from a large Colt distributor, and his gun was still breaking bolt catches on a regular basis. We isolated the problem and designed this buffer to correct a flaw in the Colt setup.

With Colt 9mm bolt catches running $20+ each, a Q Buffer is cheap insurance against future problems. How many broken catches have you replaced already?

I manufacture the heaviest 9mm buffers available anywhere. There are several side benefits - Smoother function, less felt recoil and reduced rate of fire. 9Q buffers are constructed of 303 Stainless Steel. The 9-Q Buffer has no moving parts to break and no fluids to leak.

The 9-Q Buffer was specifically designed and tested for use with Colt uppers and it has been successfully used in virtually every other brand. Any 9mm AR can benefit from installing a Q buffer. I recommend Wolff XP buffer springs for maximum reliability.

NOT COMPATIBLE WITH THE OLYMPIC GLOCK MAGAZINE SYSTEM. For those guns I recommend an HSS Tungsten Buffer. This applies only to the Olympic system, 9Q buffers work great in the DDLES & QC10 Glock lowers, as well as many others too numerous to list.


Also available for suppressed weapons: 9Q-T Tungsten Buffer

This buffer is for carbine-length stocks only, the spacer below is required for use with rifle-length stocks. When used with a spacer you'll need a carbine buffer spring.



Carbine-Rifle Buffer Spacer - $15


This product allows you to use a carbine-length buffer and spring in a rifle-length stock/receiver extension. For AR15 applications only.



Note: Specifications are subject to change without notice.