Q Cherry Bomb, Muzzle Brake, 9MM, 1/2-28 CB-9MM-1/2-28 The Cherry Bomb by Q is a Quickie Fast-Attach muzzle brake compatible with the THUNDER CHICKEN and trash PANDA silencers by Q. It features their taper mount shoulder to align with their barrels and silencers, uses a 1/2 inch socket on the front for easy install and removal, and features 360 degree circumferential ports to alleviate the need for timing and shims. Backwards compatible with standard 90 degree shouldered barrels.