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Mfg Item #: SP-RTMBFB-556
The 5.56 caliber flat back Rapid-Thread Muzzle Brake is a robust and efficient suppressor attachment for Whisper suppressor on barrels with a diameter greater than .775" behind the front threads.
| Finish | Black Melonite |
|---|---|
| Nfa Thread Pattern | 1/2x28 |
| Additional Feature 1 | For use with Whisper Silencers |
| Additional Feature 2 | Includes Shim Set and O-Ring |