Product Description The Wilson Combat Rapid-Thread Muzzle Brake is a .30 caliber, flat-back suppressor attachment engineered for use with Wilson Combat Whisper suppressors. Built for barrels with a diameter greater than 0.775" behind the front threads, it features a durable Black Melonite finish and is designed to help reduce felt recoil and muzzle rise. A complete shim set and O-ring are included to support proper timing and secure installation when used in conjunction with Whisper suppressors. Product Highlights .30 caliber flat-back Rapid-Thread muzzle brake designed as a suppressor attachment for Wilson Combat Whisper suppressors 5/8"x24 thread pattern for common .30 caliber rifle barrel threading 24mm x 1.5 external thread pitch for Rapid-Thread suppressor interface Black Melonite finish for corrosion resistance and long-lasting wear protection Includes complete shim set and O-ring to help ensure correct timing and fit Specs Brand: Wilson Combat Product Type: Rapid-Thread muzzle brake / suppressor attachment Caliber: .30 caliber Thread Pattern: 5/8"x24 External Thread Pitch: 24mm x 1.5 Finish/Color: Black Melonite Compatibility Note: For use with Wilson Combat Whisper suppressors; fits barrels with diameter greater than 0.775" behind the front threads Included: Complete shim set and O-ring MPN: SP-RTMBFB-30 UPC: 811826024473 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.