Kaw Valley Precision Blowback PCC Heavy Tungsten Buffer

Kaw Valley Precision Blowback PCC Heavy Tungsten Buffer

Product Code:
Calculated at Checkout
$34.95 - $54.95

MPN: KVP-7.5 / KVP-10oz


  • Use in 9MM, 10MM, .40 S&W, or .45 ACP blowback AR systems
  • Increases dwell time in blowback pistol caliber AR-15 setups
  • 7 oz model is made from solid stainless steel - eliminates annoying buffer "rattle"
  • 10 oz model is ideal for suppressed weapon
  • Increases reciprocation mass and weapon reliability
  • Reduces wear of critical internal action parts
  • Reduces felt recoil


  • Material:
    • 7.5 oz Model: Solid Stainless Steel
    • 10 oz Model: Stainless Steel Body with Tungsten Weight
  • Finish: Raw Stainless Steel
  • Actual Weight:
    • 7.5 oz Model: 7.3 - 7.7 oz.
    • 10 oz Model: 10.3 - 10.7 oz
  • Length: 4.107"


  • Carbine length buffer tube with pistol caliber bolt


Are you ready to fine-tune your blowback style AR-15 in pistol caliber? You need to begin with upgrading the standard buffer to a Kaw Valley Precision AR15 9mm buffer. Your weapon will fire smoother, last longer and you will enjoy it more.

Quiet in The Back, Please

A pistol caliber AR-15 is just plain fun to shoot, it’s even better when it’s suppressed. A factory buffer doesn't do the trick, therefore, no matter what you put on the front it’s only going to be so quiet. Quiet is a relative term, but when you change to a Kaw Valley 9mm AR buffer you will hear a difference. By increasing the weight of the buffer you slow the action just enough to absorb that excessive rattle and clank. Now your suppressor can do its job. You’ll notice the difference when the rounds purr through your carbine instead of cackling like a chicken.

Smooth Sailing

When you lift your Kaw Valley AR15 9mm buffer from its box you’ll feel precision. Run your fingers over it, no rough edges only smooth transitions from front to back. This AR15 9mm buffer was minted to help you dial in your carbine. Blowback pistol caliber bolt are a bit rough on an AR, therefore, you should give it some help with a Kaw Valley 9mm AR buffer. The extra weight doesn’t hurt the action, it helps your AR carbine digest those rounds you keep feeding it. Kaw Valley Precision designed its 9mm AR buffer specifically for your pistol caliber carbine. If you have a question you don’t have to email someone in another country, you’ll find Wing Tactical and Kaw Valley Precision right here in America so upgrade to KVP today.

Write a Review

6 Reviews

  • KAW Valley Heavy Buffer

    Posted by Brian Underwood on 25th Oct 2020

    Works great!! My first PCC build, went to range and functioned without a problem.

  • Perfect fit & length size

    Posted by Troy on 14th Aug 2020

    With this XL long buffer I don’t have to worry about breaking the bolt catch. I have this one & another by the same company only heavier and both work the same. No spacer needed. I am trying out the 7oz one to reduce the over all weight of the AR9 pistol. It works flawlessly as the 10oz one did. No cycling issues and LRBHO works every time with the AAO mfg lower. I bought a spacer should I want to try and reduce more weight by using a carbine buffer. But I think I’ll stick with this 7oz long buffer. Kaw valley & wing tactical, great pair, you can’t go wrong.

  • Kaw Valley Rocks!

    Posted by MVP on 9th Mar 2020

    First time I purchased buffers from Kaw Valley Precision and I must say, they make top notch products, great quality and Wing Tactical always deliver on prices and shipping!

  • Used for 10 mm AR build

    Posted by Attila on 20th Sep 2019

    I haven’t fired this AR that this buffer went into so I don’t know yet if it’s the proper weight for the 10 mm cartridge. The buffer is very nicely machined. It’s actually the nicest buffer I’ve ever owned. Very nicely made. It should work very well. The 10 oz. weight was recommended for use when using the 10 mm cartridge so I expect it to work well.

  • Great Product

    Posted by Dan Flood on 5th Feb 2019

    This is excellent for 9mm PCC builds.

  • Buffer

    Posted by Unknown on 22nd Jan 2019

    It’s exactly what my ar/45 pistol build needed

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