1 Medium Height One Piece Scope Mount with Stop Pin for High Power Magnum Airguns Air Rifles This is a medium height scope mount made specially for use with high power airguns. One-piece design for better scope alignment. It works with scopes of 1inch tube and with objective lens size up to 40mm. Its side clamping plate can be reversed so that the mount works on both 3/8inch and 11mm dovetail rails. The mount also has a stop pin built in at the bottom and can be applied easily when needed using the L hex wrench that comes with the mount. The side plate has 4 clamping screws for max. holding power. Saddle height: 13.85mm Center height: 26.50mm Inner distance between two rings: 58mm Overall length: 100mm