There's a Short Rail 75 Frame (Serial #10158) with a KADET (I guess CZ called it a KADET "A", Serial #BL7367) Upper on it, up for auction on GB.com
Not sure why the Owner would have ditched the original Upper to turn their Short Rail into a stand alone .22lr Pistol ?
Not sure how secure the Main Slide Housing of the KADET would be, considering the last inch+ and the Housing Tabs are just sitting out there in space, with zero support !
I know Lock-up and Slide support have nothing to do with the KADET's repeatable accuracy, but still, I'm not sure how comfortable I'd be shooting it ! ? !
Thought ?
https://www.gunbroker.com/item/879501970