Burris also makes an extra-high silver 30mm Ruger ring. I've use both Burris and Millet rings on my Rugers, both are steel. The Millet ring is fine, and less expensive (they'll run ya about $25). The Burris ring looks nicer and can be torqued to higher loads (they'll run ya around $45). Both are windage adjustable, unlike Ruger rings. Warren also makes a silver 30mm extra-high Ruger ring but they run around $75. Warren rings are expensive, I've got two pairs (not on Rugers) and they're worth the price. -- Kernel