Reviews & Ratings for Precision Armament AccuWasher Gen2 Shim Kit

Precision Armament AccuWasher Gen2 Shim Kit

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Most Helpful Positive Review The best you can use

Finally had to buy my second set in 1/2x28... one of the best MD products out there, and the only I'll use besides JP's double crush washer. Infinitely reuseable, until you lock one in on a barrel. Can be removed and reinstalled with the same MD/barrel countless times. Perfect installment, takes a l...
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Most Helpful Negative Review I Like The Idea... Sizing for .750 Barrel Makes No Sense

I went to the Precision Armament website, which doesn't ever provide the model number of the packet you're buying. You need that M/N if you're going to buy from here. Via internet searching, I found that the AW625 is supposed to be appropriate for my .750 muzzle barrel with 1/2-28" threads. What ...
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great product

by dakmala, Verified Owner from MS, United States Written on July 29, 2026

Accuwashers are fantastic. No complaints. Love OpticsPlanet.com.

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great product

by dakmala, Verified Owner from MS, United States Written on July 28, 2026

Accuwashers are amazing. Trustworthy. Love OpticsPlanet.com.

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accuwasher

by bob, Verified Owner from IL, United States Written on July 11, 2026

This is the only system I use to attach any of my muzzle devices. You have to look up your barrel diameter and thread pitch for the same size of accuwasher. Just remember the heavy grooves are 5 and the thin grooves are 1. After each washer, hand-screw on the device and look at their sight for the additional degrees and washers you need to add

Best Used for:

Muzzle devise setup

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Best shim kit on the market.

by BowtieJoe, Verified Owner from MI, United States Written on June 26, 2026

The best, easiest to use shim kit available. Extremely easy to use and looks great.

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nice shim kit

by Mark Bauer, Verified Owner from VA, United States Written on June 16, 2026

Nice shim kit. It would work great for a muzzle brake indexing. Easy set up. I bought it just for the washer for a flash hider that doesn’t need to be indexed. Company support is great for the questions that I had. I would recommend.

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Unfair purchase

by GettingBetter-Cali Shooter, Verified Owner from CA, United States Written on March 4, 2026

This totally is an unfair and unnecessary purchase. This item should actually come with the purchase of the muzzle device....Well, it is not an unnecessary, in order for the muzzle device to fit without an issue, you must by these freaking things, that come in like a bag of 12 or something.

Pros:

it works

Cons:

forced purchase

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No ring size chart

by Ironhead, Verified Owner from AL, United States Written on January 24, 2026

Packet did not come with ring chart as shown in advertisement .Not sure of proper shim size.

Pros:

Shipping was quick

Cons:

No ring size chart

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Precision Armament Accwashers

by Steve Garcia, from TX, United States Written on December 2, 2025

Bout these for my Ar 15 muzzle break got luck with the first washer. Highly recommended

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Reviews & Ratings for Precision Armament AccuWasher Gen2 Shim Kit — 10 reviews — Page 1