30mm, 2 – Piece Dovetail Rail Mounts (High) For scopes with a 50mm objective lens and larger 30mm rings High profile Fits 9.5-11.5mm dovetail 4 hex screws/ring to secure scope Vertical scope stop pin (removable) The 2 hex screws on the base let you adjust the rings to fit the different width rails found on airguns. The clamp is made to securely fit a range of dovetail widths.
