Warne 1 inch 7.3/22 High Rings - Matte - The Rimfire rings are designed to fit a very wide selection of rifles with either a 3/8a ^2" or 11mm dovetail. This is made possible by using a solid asymmetrical reversible clamp that can be flipped 180? and used on wider or narrower dovetails for the best fit. All steel rings with a horizontally split design and only ?" wide. Assymetrical reversible side clamp fits a 3/8a ^2 or 11mm dovetail. Securely mounts to firearm with Torx style T-15 socket cap screws, 25 in/lb. of torque recommended.