Innomount quick detachable scope mount for Sauer 303 - Ring mount This Innogun quick detachable scope mount is specially designed for the Sauer 303 with ISI mount. The ISI-Mount was used at the beginning of the production of the Sauer 303. The current Sauer 303 self-loading rifles have the newer Sauer SUM mount for the Sauer 404, so depending on how old your Sauer 303 self-loading rifle is, you need the "Sauer 303 mount" (or ISI mount) or the "Sauer 404 mount" (or SUM mount). The mount offers different rings to achieve different heights - so selsct the one which fits Your needs the best.   Height: Rings (standard) in 26 / 30 / 34 / 35 / 36 / 40 mm: Overall height = 14 mm Rings BH+3 in 26 / 30 / 34 / 35 / 36 / 40 mm: Overall height = 17 mm Rings BH+6 in 26 / 30 / 34 / 35 / 36 / 40 mm: Overall height = 20 mm Details: Clamping lever with protection against unintentional opening repeatable made of steel suitable for Sauer 303 with ISI Mount suitable for mounting with rings of different diameters Overall height: 14 / 17 or 20 mm