The Wilson Combat Muzzle Device Shim Kit (part no. SP-RTMB-SHIMKIT2) is what gets a Wilson Combat Rapid-Thread muzzle brake or Whisper suppressor mount to land dead vertical or horizontal on a 1/2×28-threaded barrel instead of stopping wherever the threads happen to run out. Wilson Combat builds it to the same tight tolerances the company is known for on its match-grade rifles and pistols. Stacking shims behind the muzzle device lets you index it precisely at final torque without guessing.

Key Specifications

• Built for 1/2×28-threaded barrels.
• Purpose-built for Wilson Combat’s Rapid-Thread muzzle brake and Whisper suppressor mount system.
• Ships at a light 0.04 lb, adding almost nothing to your order.

Frequently Asked Questions

What thread pitch is this kit for? Standard 1/2×28 barrel threads.

What problem does this kit solve? It lets you index a Wilson Combat Rapid-Thread muzzle brake or Whisper suppressor mount to the correct orientation without the device landing off-axis at final torque.

Buy the Wilson Combat Muzzle Device Shim Kit, 1/2×28

A muzzle brake that’s a few degrees off level is a small thing that bugs you every time you look down the barrel, and this shim kit is the cheap fix. Order it from our Lubbock, Texas gun shop and it ships fast to your door, along with more AR muzzle devices.