Burris Rimfire and Airgun Rings are the highest quality available. They are known in the industry for reliable performance under any conditions. – Available in solid steel or aluminum – Available aluminum rings create lightweight mounting solutions – Fits .22 grooved receivers – Use with rimfire and airgun optics – Durable with strong gripping power – 1-in. size – Time-tested proven design – Most models come with reversible clamps to also fit 11mm dovetails – Covered by the unconditional Burris Forever Warranty™