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
Finish | Black Nitride Finish |
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Additional Feature 1 | Fits 3/4x24,M18x1,M18x1.5 |
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Determined at checkout.