Yankee Hill Machine Co Shim Set 5/8" Iniside Diameter, Fits .30 Caliber QD Muzzle Breaks - SHIM-3302-SET

Barrel Shim Set to be used to correctly orient a timed muzzle device. This set is used with our 7.62 mm Q.D. Muzzle Brakes. This shim kit has an inner diameter of 5/8 inches.Features:Thicknesses included (3) 0.002 inches, (3) 0.005 inches, (1) 0.02 inches