Burris Optics 30mm Tactical Rings Extra High Picatinny Style Matte Finish 1 Ring The XTR Xtreme Tactical rings were created specifically for the tactical shooter who puts a premium on less weight and plenty of holding power. From smaller carbines to the most powerful magnums and XTR rings will stand up to years of use and recoil. They are also great for hunting rifles and slug guns or muzzleloaders. Specifications: - Size: 30mm - Height: 1", Extra High - Material: Aluminum - Finish: Matte - Number of Rings: 1