• Limits the travel of your 9mm bolt
  • Eliminates the chance of breaking bolt atches
  • Provides a smoother shooting gun
  • Made from CNC machined 6061 Billet Aluminum
  • Black anodized finish for strength and durability


  • Material: 6061 Billet Aluminum
  • Finish: Black Anodized
  • Weight: 0.81 oz.


  • 9mm AR-15 (AR9)


Do you already have a 9mm AR? Then you probably know what a picky little critter they can be. Maybe one is in your future. Then you have to hear this. The little 9mm AR is a fun weapon to shoot when it's set up right. One area that gives you fits with the 9mm AR is the buffer system. If you want to cut out a lot of aggravation, get yourself a 9mm buffer spacer.

Short-Stroke To Glory

It's not hard to understand. The 9mm cartridge is shorter than a 5.56mm. Therefore, the stroke of the gun should be shorter for it to run right. Spikes Tactical knows this. That's why they created a special AR9 buffer spacer to make things work right. This specially made 9mm buffer spacer rides in the back of your guns buffer tube. That means the BCG of your AR9 doesn't travel as far. More gas goes down the muzzle of your gun and doesn't wind up in your face. Your AR9 is going to be smoother to shoot, and it will last longer.

Time To Start

The amount of time it takes your BCG to cycle directly impacts your follow-up shot. I know, we're talking about milliseconds, you might wonder why is that such a big deal? Well, if you just pop cans in the backyard, it doesn't. However, do you ever compete in Three-gun comp.? You know, they're timed. Maybe your primary purpose is having a self-defense PDW. Well, now you really have to use a Spikes Tactical AR9 buffer spacer. In both situations, your gun has to run. A quick double-tap can win the race, or it can save your life.

Have a question?

Ask an Expert