RUGGED SHIM KIT .338 3/4X24 M18X51

Rugged's .338 precision shim kits are designed for 3/4×24, M18x1 and M18x1.5 barrel threads to align your muzzle brake or flash hider.

• .760ID/.875OD
• Designed for 3/4×24, M18x1 and M18x1.5 barrel threads