Burris' Rimfire and Airgun Rings are high quality and are reliable performance under any conditions. It has durable, strong gripping power and is comaptible with .22 grooved receivers. This model is constructed of aluminum with a black gloss finish with medium height rings. Burris rimfire and airgun rings are the highest quality available. They are known in the industry for reliable performance under any conditions. Features: Fits 22 grooved receivers Use with Rimfire and airgun optics Durable, with strong gripping power Time-tested, proven design Covered by the unconditional Burris forever warranty