Yankee Hill Machine Barrel Shim Set AR15 1/2" Inner Dimension - YHM SHIM3102SET

Barrel shim set designed to correctly orient timed muzzle devices on AR15 platforms with 1/2" inner diameter. This kit includes multiple shim thicknesses (2x 0.002", 5x 0.005", 1x 0.020") for precise alignment with 5.56mm quick-detach muzzle brakes. Essential accessory for proper muzzle device timing and function.