When your silencer is equipped with the Plan-B mount & Cherry Bomb muzzle brake by Q" you can enjoy your silencer without fear of launching it down range. As you'd expect" Q accomplished this by utilizing tapers on both the Cherry Bomb and the Plan-B mount. This provides a better lock-up thanks to increased surface area" guarantees improved alignment of your silencer" and protects your threads from carbon exposure. No shims" washers" latches" springs" gimmicks" or timing of the muzzle device required!