IWI US Quick Disconnect Muzzle Brake 7.62x39mm 5/8X24 Black. IWI's products are used by the Israel Defense Forces (IDF) and around the world. All of IWI's weapons have been battle-tested in tough and extreme environments worldwide. Specifications for IWI US Quick Disconnect Muzzle Brake: Manufacturer: IWI US Color: Black Finish: Nitride Gun Make: Israel Weapon Industries (IWI) Features of IWI US Quick Disconnect Muzzle Brake Left Hand Quick Detach Muzzle Brake Package Contents: IWI US Quick Disconnect Muzzle Brake IWI US IWSQDMB24: Quick Disconnect Muzzle Brake 7.62x39mm 5/8X24 Black