Banish 30 Gold Muzzle Brake 1/2x28 Black 4578. Specifications for Banish 30 Gold Muzzle Brake: Manufacturer: Banish Color: Black Fabric/Material: Titanium Package Contents: Banish 30 Gold Muzzle Brake Banish 4578: 30 Gold Muzzle Brake 1/2x28 Black