Ruger 90316 5K30TGMM Scope Ring Matte Black 30mm High
http://www.tandktactical.com/shop/736676903160-ruger-90316-5k30tgmm-scope-ring-matte-black-30mm-high-13550
http://www.tandktactical.com/web/image/product.template/13550/image_1920?unique=f06b43a
High scope ring designed to fit a scope with a 30mm scope tube diameter and a 52 MM objective diameter.
