Wilson Combat SPRTMBFB458 Muzzle Brake | .458 | 11/16×24

The Wilson Combat SPRTMBFB458 is a flat-back Rapid-Thread muzzle brake engineered for use with Whisper suppressors on .458-caliber platforms. It attaches to barrels with a diameter greater than 0.775″ behind the front threads and provides a secure mounting interface for compatible silencers. The unit ships with a shim set and O-ring and is finished in Melonite for corrosion resistance.

Product Specifications

• The manufacturer is Wilson Combat.
• The manufacturer’s part number is SPRTMBFB458.
• The model is listed as Muzzle Brake.
• The finish is Melonite.
• The product is intended for use with Whisper Silencers.
• The additional features include Includes Shim Set and O-Ring.
• The NFA thread pattern is 11/16×24.
• The product type is Accessory-Parts.
• The finish type is Applied Finish.
• The weight is 0.24.
• The length is 7.
• The width is 3.2.
• The height is 0.9.
• Can be disassembled: False.
• UPC: 811826025098.

This Rapid-Thread muzzle brake is a purpose-built interface for suppressor-equipped .458 rifles where a flat-back mount is required. Its robust construction and included shims make headspacing and alignment straightforward for field or range setups. If you need a straightforward, durable mounting solution for a Whisper silencer on compatible barrels, this brake delivers the practical features required for reliable use.