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Get a demoSign inBarrel Shim Set to be used to correctly orient a timed muzzle device. This set is used with our 5.56mm Q.D. Muzzle Brakes. This shim kit has an inner diameter of 1/2"
Included with this shim kit are shims with the following thicknesses:
2x 0.002"
3x 0.005"
1x 0.020"
This shim kit has an inner diameter of 1/2"