These mounts are designed to be used with all scopes that have a one inch body tube and an objective up to 45 mm. These mounts are great with airguns as they have an integral recoil pin (used to prevent scope creep) built into the base of one of the mounts, but this can be pulled out with pliers for those who do not need to use this feature. The four screws on the split rings and two clamping screws on the side give a secure grip when used on guns with even the most punishing recoil. Made exclusively for Beeman by British SportsMatch in the UK.