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Questions & Answers
Would the shim go on first ? And then crush washer ??

if u use shims u shouldn't need a crush washer that's kinda the point in the shims

by JD, Verified Owner, December 26, 2025
Customer Reviews
Helpful Positive Review
simple necessity by David Morales Bello, Verified Owner, July 30, 2021
These are simple steel shims to help you dial all your muzzle devices properly on .223 barrels. Just combine the necessary number of shims in order to mount your muzzle device 1/4 turn away from perfect. Then rotate to the exact point with a torque w...
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4/4 found this helpful
Helpful Positive Review
shimmy shimmy baby! by KenC, Verified Owner, March 29, 2022
Product as described, perfect shim for the 1/2x28 thread AR15 .556/.223 platform or a 9mm caliber as long as the thread pattern is 1/2x28. It came with a different variety of thickness shims, a must have if you’re that person who loves to build your ...
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2/2 found this helpful
Most Recent Reviews
The shims shim by Don, Verified Owner, February 10, 2026
These were originally out of stock, so I waited nearly a month for them. They work as expected and have multiple thickness.
Most Recent Reviews
Could be better. by JD89889, Verified Owner, March 6, 2022
They work and have been better than some other brands but would be so much easier if they included some .001 or .002 shims. Takes too long trying to find the correct combination of shims. Every time I add a shim to try to get it timed it would add to...
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0/2 found this helpful
Most Recent Reviews
you could never have too many shims by Charles, Verified Owner, October 1, 2025
You know, sometimes we force things to fit when they don’t actually fit. We make it difficult on ourselves when we need to make adjustments or just settle for the instant instantaneous quick fixes. Having extra shims is a piece of mind and comfort to...
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Most Recent Reviews
Perfect Shim Combinations for Proper Fitting by Jack, Verified Owner, June 4, 2025
This Strike Industries shim kit provides multiple mm shims to make it work! Obviously it took a little trial an error as expected to match up the appropriate mm for proper fit, but the appropriate sizes and number of shims per mm are here to make it ...
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Read All 18 Reviews
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Product Info for Strike Industries AR Shim Set

Made out of a 304 stainless steel, the Strike Industries AR Shim & Timing Set is a reusable and essential tool for firearm owners who are looking to improve their builds. These Rifle Parts designed by Strike Industries are the perfect replacement for your one-time use crush washers that usually come with a silencer mount. With this Shim & Timing Set from Strike Industries, you can properly time your suppressor based on your local ammo and avoid costly re-zeroing later on. Ensure your ports on a muzzle device are correctly positioned to reduce back-blast and assist in properly timing your suppressor. These 13 pieces of shim/timing are all the pieces you need for your builds. Pick up the Strike Industries .223/5.56 or .308 Shim/ Timing Set today to build a more reliable weapon.image

WARNING: California`s Proposition 65

Specifications for Strike Industries AR Shim Set:

Manufacturer: Strike Industries
Color: Stainless Steel
Fabric/Material: SUS 304 Stainless Steel
Quantity: 13

Features of Strike Industries AR Shim Set

  • Assists in timing
  • Ensure alignment
  • Properly position ports
  • Reusable

Package Contents:

  • Strike Industries AR Shim Set
  • X4 0.075Mm/0.0029 Inch Shim
  • X3 0.22Mm/0.0086 Inch Shim
  • X3 0.11Mm/0.0043 Inch Shim
  • X2 0.34Mm/0.0138 Inch Shim
  • X12.0Mm/0.0787 Inch Shim

Strike Industries AR Shim Set Orderable Models

List of Orderable Models

  • Strike Industries AR Shim Set, .223/ 5.56mm, 1/2x28 TPI, Stainless, Black, One Size, SI-AR-SHIM-223 , MPN: SI-AR-SHIM-223 , UPC: 793811763843 , Code: 3Q-FSH-SHIM1-SI-AR-SHIM-223
  • Strike Industries AR Shim Set, .308/ 7.62mm, 5/8x24 TPI, Stainless, Black, One Size, SI-AR-SHIM-308 , MPN: SI-AR-SHIM-308 , UPC: 793811763850 , Code: 3Q-FSH-SHIM1-SI-AR-SHIM-308
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Last updated 2026-07-07 UTC.