This 9mm Muzzle Brake and Compensator hybrid is designed to reduce recoil as well as muzzle rise for a quicker follow up shot. It is also available in a 5.56mm and a .30 Cal. - Made from quality heat treated steel - Plated with Melonite QPQ (Matte Black Finish) - Threaded 1/2-36 - Rated for 9mm 7.62x39mm - Includes Crush washer in the price - Length:2.55 - Weight: 4.5 Ounces