Ruger Adapter<br />High quality CNC Machined Steel， Matte Black Finish<br />Ruger 10/22 Thread Adapter to 1/2"x28， Adapts Ruger 10/22 for 1/2"x28 Accessories<br />Tightens in place with 3 Black Set Screws<br />Allen wrench Included<br /><br />Tube Can<br />CNC Machined High Quality Aluminum Billet<br />1/2"x28 Thread Pitch<br />Solid Machined Construction<br />Type 3 Anodized Finish<br />Reduces Muzzle Rise<br />223/556 Application<br />Measures 7" long<br />Inside Diameter 0.76"<br />One solid Piece can not take apart<br />Slip On Threaded Muzzle Brake