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Griffin Armament Griffin Shim Set Up to 36% Off — 3 models

Griffin Armament Shim kit 5/8x24 GA 5/8SK
Griffin Armament Shim kit 5/8x24 GA 5/8SK
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Griffin Armament Shim kit 5/8x24 GA 5/8SK

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Questions & Answers
How many come per pack? "Plenty" isn't very accurate... Expert Answer

Each Griffin Armament Griffin Shim Set will include 5 shims.

by Ethan, Gear Expert, August 1, 2022
what is the O.D. of the 5/8-24? Expert Answer

Unfortunately, the manufacturer does not have that information listed. We recommend contacting them for this inquiry.

by Carly R., Gear Expert, November 15, 2017
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Customer Reviews
Helpful Positive Review
Great product by Kain, Verified Owner, December 5, 2017
Easy to get your muzzle device timed correctly using these shims... The shim kit includes different sizes and plent of them, so I was actually able to use them for 2 rifle... They shipped them to me within a week, so the fast shipping was a plus...th...
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4/4 found this helpful
Most Recent Reviews
Not worth the money/Outer diameter is larger than barrel by Patrick McNeill, Verified Owner, January 26, 2023
Ordered 5/8x24 Griffin Armament shim set and ended up returning. The outer diameter (0.77in) was slightly larger than my barrel (0.74in) and my other shims from Dead Air (0.74in). Only included 7 shims with small total thickness (0.02in). All came un...
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Most Recent Reviews
Griffin shims by Anthony, November 5, 2019
Shims were great allowed me to properly index my muzzle Now to wait for my Optimus suppressor to get out of ATF jail. It would be nice if the shims came with Griffin muzzle devices but for the price not bad
Read All 3 Reviews

13% OFF Firearm Parts

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Product Info for Griffin Armament Griffin Shim Set

This kit includes stainless shims needed to time any Griffin Armament Muzzle devices. Shims are necessary to provide precise perpendicular alignment of the muzzle device with the thread shoulder of the barrel. We do not recommend the use of anything other than shims for installing muzzle devices for silencer mounting applications. NOTE: All Griffin Armament Muzzle Devices include the necessary shim set for installation.image

Package Contents:

  • Griffin Armament Griffin Shim Set

Griffin Armament Griffin Shim Set Orderable Models

List of Orderable Models

  • Griffin Armament Shim kit 5/8x24, GA 5/8SK , MPN: GA5/8SK , UPC: 791154081198 , Code: 28N-FSH-GAGSS-GA-5-8SK
  • Griffin Armament Shim kit 1/2x28, GA1/2SK , MPN: GA1/2SK , UPC: 791154081181 , Code: 28N-FSH-GAGSS-GA1-2SK
  • Griffin Armament Shim kit 18x1 or 3/4x24, GABBSK , MPN: GABBSK , UPC: 791154081204 , Code: 28N-FSH-GAGSS-GABBSK
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Last updated 2026-09-21 UTC.