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SHIM KIT, RAPID-THREAD MUZZLE BRAKE | WHISPER SUPPRESSOR | 11/16"x24 ID

SHIM KIT, RAPID-THREAD MUZZLE BRAKE | WHISPER SUPPRESSOR | 11/16"x24 ID

Wilson Combat
SKU:
SP-RTMB-SHIMKIT3
$8.95
(2 reviews)
Current Stock:
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Wilson Combat

Replace your Wilson Combat Rapid Thread and Flat Back shims with our 11/16" x 24 thread pitch shim kit. 

Replace your Wilson Combat Rapid Thread and Flat Back shims with our 11/16" x 24 thread pitch shim kit. Our installation is fast, easy, and guaranteed to enhance the performance of your firearms. This kit has been specially designed for11/16" x 24 threads, providing you with precision ground shims for the perfect fit. 

  • Designed for the Whisper Suppressor interface
  • 11/16" x 24 thread pitch shim kit specifically designed for .458 caliber muzzle threads 
  • Precision ground shims provide a perfect fit 
  • Fast and easy installation 
  • Compatible with Wilson Combat Rapid Thread and Flat Back attachments

For shim kit installation instructions, click here.

Reviews

  • 1
    Not enough shims.

    Posted by Brent on Jul 15th 2026

    Like the only other review, same experience. Came with a 450 conversion kit, not nearly enough shims included to properly time it in any combination unless you’re lucky. So I’m forced to order more for what should be a hassle free install. Fix your product and add more like the other thread sizes at a minimum.

  • 1
    Not Enough Shims To Properly Time Wilson’S 450 Barrel

    Posted by Andrew Haight on Jul 15th 2020

    This came in my 450 bushmaster kit I bought from Wilson Combat. It’s not enough to properly time the rapid thread muzzle device that came with the kit. Any combination of the three shims has me way too far from proper timing to get there with less than 40 lbs of tq.