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Precision Armament Accu-Washer Muzzle Device Alignment System
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Most Helpful Positive Review Was able to perfectly align my EFAB hybrid muzzle devoice with this.
Since I ordered the EFAB muzzle device, I had to pick this up as well in order to properly align the EFAB on my barrel (not sure if this is required for all Precision Armament muzzle devices). The muzzle alignment system comes with 18 washers of varying thickness, each marked with thin/thick notches...
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Most Helpful Negative Review Crush Washers not ALLOWED
I love precision armaments AFAB, I wish it came with a lock nut like others at this price do, but the brain trust at precision armament wanted to make washers. . . 1st of all, if they came on a ring in order, it would be a start, but its just a baggie full of 20 some washer with tiny marks on them. ...
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Don't bother with other shims.

by Hammermier, Verified Owner from KS, United States Written on March 27, 2025
Reddit recommended I try these after destroyed the shims that came with my muzzle device. I tried 5 times with my previous shims to time my device. These ones here it was one and done. I wish I would've bought these before even trying to instal the first time.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

A little baggie to get it done right

by jay, Verified Owner from OH, United States Written on March 6, 2025
Alignment of my muzzle device was perfect after using these washers. As others mentioned, it takes time to get the right one. There is a guide that covers how thick each washer is and goes much rotation you will encounter when selecting the correct washer. After tightening the muzzle device to the correct torque, it is perfectly aligned on every axis.

Pro tip: I organized my washers before starting so I could manage them more easily.
Pros:
  • aligns muzzle devices perfectly with little to no effort
Cons:
  • the washers are all stuffed in a bag, so there is no organization
Would recommend: Yes
Was it helpful to you? Yes | No

Muzzle device

by OG, Verified Owner from FL, United States Written on March 5, 2025
Very good quality, I recommend it, very easy to use with the instructions.
Would recommend: Yes
Was it helpful to you? Yes | No

takes a few minutes but always works perfectly

by zach, Verified Owner from LA, United States Written on February 9, 2025
I’ve used the precision armament wining washers many times. It takes a few minutes to find the right one but it’s simple and always works.
Would recommend: Yes
Was it helpful to you? Yes | No

works as advertised

by zach, Verified Owner from LA, United States Written on January 25, 2025
I’ve used the accuwasher system multiple times on different builds and it has always worked as advertised
Would recommend: Yes
Was it helpful to you? Yes | No

Better than shims

by Kyle, Verified Owner from OH, United States Written on January 18, 2025
Way better than shims for timing a muzzle device. No slipping shims. One solid washer. Very easy to find the right size washer with the destructions.
Pros:
  • Easy install and sizing with provided destructions
Cons:
  • Extra washers for more devices ( not a con)
Best Used for:
  • Muzzle device timing
Would recommend: Yes
Was it helpful to you? Yes | No

excellent quality

by jaeson, Verified Owner from FL, United States Written on January 18, 2025
I like these better than the surefire ones. the surefire shims are good but definitely a difference in quality.
Would recommend: Yes
Was it helpful to you? Yes | No

Stuck in between timings

by Wylde, Verified Owner from LA, United States Written on December 23, 2024
It seems like I'm also one of the unlucky few who has a timing needed that's in between these washer sizes. I even applied grease to the washer as suggested, but I would've over torqued for sure to get to 12 o'clock position.

I ended up buying peel washers. Wasted $25 and a lot of time unfortunately.
Would recommend: No
Was it helpful to you? Yes | No

worked great

by lee, Verified Owner from NC, United States Written on November 30, 2024
These shimmed washers made timing a key mo quick and easy.
Would recommend: Yes
Was it helpful to you? Yes | No

Better option

by Pat Brewer, Verified Owner from MD, United States Written on September 16, 2024
This is a better option than the manufacturer supplied shims. These make installation so much easier and faster. I would recommend them highly!
Pros:
  • easy to use
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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