Ultimate Arms Gear Tactical Deluxe Machined Silver Ruger Aluminum Low Profile Dual 30mm Or 1" Premium Scope Rings - One Pair Fits Both 30mm Or 1" Diameter Scopes Manufactured From T6 Aluminum Alloy - Silver Finish Base Is Made For Ruger's Unique Style. Withstands Brutal Recoil And Provides Rock Solid Power Low Profile