The Wilson Combat SP-RTMB-5-8X24-9MM is engineered for superior performance, seamlessly integrating with the Whisper suppressor to enhance shooting precision. Crafted from hardened Melonited steel, this muzzle brake acts as the first line of defense against blast damage while significantly minimizing internal suppressor wear. 5/8"x24" threading for compatibility 24mm x 1.5 External thread pitch Durable Black Melonite Finish Effectively reduces recoil and muzzle rise Compatible with barrels measuring .740" - .775" at 1/2" from threads Upgrade your shooting experience with this essential accessory for precision and durability.