Wilson Combat Shim Kit Features The Wilson Combat Shim Kit is engineered specifically for the 11/16x24 thread pitch used on Wilson Combat Rapid Thread and Flat Back attachments. Each shim is precision ground to a consistent thickness which lets the shooter fine tune the gap between the barrel shoulder and the attachment for a snug repeatable mount. Because the shims are sized for .458 caliber muzzle threads they are purpose built rather than a generic washer substitute and that precision is what keeps a brake indexed correctly after installation. Maintaining correct shim thickness matters most on a brake or compensator where even a small amount of play can affect timing and point of impact shift. Installation is fast and tool minimal letting an owner swap worn or damaged shims without sending the attachment back to the factory. The kit ships compact and lightweight at roughly seven inches overall length so it stores easily in a range bag alongside other small parts. Keeping a spare set of Wilson Combat shims on hand is a practical step for anyone who regularly removes and reinstalls a suppressor mount or muzzle brake. For sale at GrabAGun this shim kit is a simple way to keep a Wilson Combat attachment performing like new. Wilson Combat Shim Kit Specifications Manufacturer: Wilson Combat Model: Shim Kit Type: Part Color: Silver Compatible Hosts: Wilson Combat Rapid Thread Flat Back Attachments Thread Pattern: 11/16x24 Overall Length: 7 Weight: 0.03 lbs Available At: GrabAGun