When was this photo taken? Are these recent adaptations of qmk scopes
I'm interested in knowing that too. My QMK, like the ones pictured, doesn't have the steel cylindrical mount on the underside the optic for interfacing with the proprietary Type 95 rail mount. That's incorporated into the mount itself now. It uses a clever ratcheting system for tightening, which I like. That being said, the mount I have is dated October of 2019. I think it varies by the manufacturer. For example, some QMK's don't have the purge valve on the side, like the one picture:
