Ruger 90270 4KHM Scope Ring Matte Black 1" Medium
http://www.tandktactical.com/shop/736676902705-ruger-90270-4khm-scope-ring-matte-black-1-medium-7869
http://www.tandktactical.com/web/image/product.template/7869/image_1920?unique=1ad640c
Designed to fit a scope with a 1" scope tube diameter and a 42 MM objective diameter.
