The Yankee Hill Machine Co Shim Set is designed for precise orientation of a timed muzzle device. Specifically, it is compatible with 5.56mm Q.D. Muzzle Brakes and comes with an inner diameter of 1/2".
Specs
| Model No. | YHMSHIM-3102-SET |
| Model | Shim Set |
| Manufacturer | Yankee Hill Machine Co |
