Ruger 90408 5K/6K Scope Ring Set Silver 1" High
http://www.tandktactical.com/shop/736676904082-ruger-90408-5k-6k-scope-ring-set-silver-1-high-12572
http://www.tandktactical.com/web/image/product.template/12572/image_1920?unique=b883537
High scope ring designed to fit a scope with a 1" scope tube diameter and a 52 MM objective diameter.
