The photos are a little confusing to me. It appears the scope is designed for a rail mount but may have a flatside on the bottom of the tube which would allow fitting to standard rings which would be either 1" or 30mm, I'm not sure which.
This scope is not designed to be mounted with rings. The rail is what I refer to as a "prism" type and is 14mm. This scope is designed to be mounted with a claw foot/base.
