Steel shims set for weapon muzzle threads, 1/2"x28 UNEF, Primary Arms

Steel shims set for weapon muzzles, Primary Arms

Hardened steel shims ensure precise fit and correct alignment of flash suppressors, muzzle brakes, and compensators.

• Large (thick) shim allows 90° of rotation and can be used as a spacer for barrels not having a relief cut behind the threads.
• Medium shims add approximately 45° of rotation.
• Small shims used with large and medium shims provide smaller degrees of rotation for finely-tuned, critical alignment.

Key features of the Steel shims set for weapon muzzle threads by Primary Arms

• Thread: 1/2"x28 UNEF / 1/2"x28 TPI