Precision Armament Accu-Washer 5/8x24

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The most precise and easy to use muzzle device alignment system on the market.

Simply choose the correct size Accu-Washer to accurately index your muzzle brake or flash surpressor while maintaining perfect bore alignment. Since only one Accu-Washer is required, the tolerance stackup’s and complexities associated with peel washers and other multi-shim systems are eliminated. This minimizes the risk of baffle strikes, ensuring maximum accuracy and safety from your muzzle brake or suppressor. Includes 18 individually marked washers (timing adjustable from 0−360 degrees in 20-deg increments) and easy to follow instructions. Precision machined from high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001″. All washers feature an oxide blasted non-reflective surface finish for low visibility. One Accu-Washer System will align approximately nine brakes (on average) before replenishment washers are needed. Designed to fit 5⁄8−24 threaded barrels.



  • Material: 400 series stainless steel
  • Finish: Oxide blasted, matte grey
  • Thread: 5⁄8×24 TPI
  • Outer Diameter: 0.825"
  • Thickness: 0.060" - 0.100"
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2 Reviews

  • 4
    Good fit

    Posted by Unknown on 9th Sep 2021

    Looks good

  • 5
    Easy muzzle device alignment

    Posted by Harry on 26th Aug 2015

    Bought a precision armament M72 brake for my AR, needed this kit to align it properly. Made the job very easy, and Bauer shipped fast, along with a nice can coozy. Thanks!

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