Rugged’s .338 precision shim kits are designed for 3/424, M18x1 and M18x1.5 barrel threads to align your muzzle brake or ash hider. There are 3 sizes of shims in the bag. MADE IN THE USA
Rugged Suppressors SA017 Shim Kit338 Cal (6.8mm) for 3/4″-24, M18x1, M18x1.5 tpi (3 Sizes)
