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VISM Ruger PC Carbines 9mm Muzzle Brake with Crush Washer
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Most Helpful Positive Review Good brake for the money.
For the price this is a great muzzle brake. It stops some of the muzzle rise and recoil. It was not easy for me to put on with the crush washer that it came with, so I picked up a jam nut and it works great.
Most Helpful Negative Review Unusable out of the package!
You will have to order a jam nut also. Be prepared! For some reason they are forcing me to write a longer review so this should make it longer. There wasn’t much to say! The product was unusable out of the package! Requires purchasing extra items to make work correctly! Crush washer needs replaced w...
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My 1st AR9 Build

by BklynChris, Verified Owner from OK, United States Written on March 13, 2021
I love this little baby right here. My little AR9 is rockin and rollin!! Fired 265 rounds in two weekends, now that the weather is getting better. Holding steady. I recommend this product!! The price was just right!!
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Shims vs Crush Washer

by Sierra Tactical Customs, Verified Owner from TX, United States Written on February 1, 2021
The included crush washer doesn’t allow the muzzle brake to be timed right, even after tightening down with as much pressure as possible. Ended up ordering muzzle shims that fit my threads and using a combination of the shims and the crush washer to get the correct timing on the brake.

This was a minor inconvenience, but unfortunate that no matter how much I tried to use the included crush washer, it never allowed the brake to time correctly. I recommend buying firearm specific muzzle washers when installing to allow for proper timing.
Pros:
  • functional and aesthetically pleasing
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Not pretty but effective.

by Gru.pyguy, from WI, United States Written on December 28, 2020
This muzzle brake works just fine. The finish leaves a little to be desired and I plan on respraying it with VHT paint in the near future. The threads are true and easily mounted to the 1/2x28 threads on my PC Charger. Pretty hard to beat this for the price
Pros:
  • Inexpensive/functional
Cons:
  • Needs a better finish
Would recommend: Yes
Was it helpful to you? Yes | No

Good device.

by Michael Roberts, from WA, United States Written on December 2, 2020
Good muzzle device. Works as intended. Good value for what you get. It is well built and very sturdy. Machine work was great. Threads were clean and it installed with no problems. This was pined and welded and worked out great.
Pros:
  • Stirdy
Cons:
  • Heavy
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.