Midwest Industries MI1022SM Scope Mount Matte Black Ruger 10/22
http://www.tandktactical.com/shop/816537011224-midwest-industries-mi1022sm-scope-mount-matte-black-ruger-10-22-17842
http://www.tandktactical.com/web/image/product.template/17842/image_1920?unique=9b62276
Made to fit the Ruger 10/22 receivers and clones by using factory mounting holes.