Ruger 90289 3KHM Scope Ring Silver 1" Low
http://www.tandktactical.com/shop/736676902897-ruger-90289-3khm-scope-ring-silver-1-low-7888
http://www.tandktactical.com/web/image/product.template/7888/image_1920?unique=55cea39
Designed to fit a scope with a one-inch scope tube diameter and a 32 MM objective diameter.