Amazon.ca Product Description Burris, the highest quality optics name in the industry. Whether for hunting, tactical, or competitive use, you will always have the edge using Burris products. Backed by our forever warranty service, you can never go wrong with Burris. From the Manufacturer 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, XTR rings will stand up to years of use and recoil. They are also great for hunting rifles, slug guns or muzzleloaders.