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
| Width | 3.2000 |
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| Height | 0.4000 |
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| Length | 4.4000 |
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| Dimension | 0.40 X 3.20 X 4.40 |
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Determined at checkout.
