Sounds like you are describing the CZ Custom optic system:
https://czcustom.com/custom-work/s-i...and-plate.html
You can even get a rear sight plate with standard CZ75 dovetail so you can put in any rear sight you like.
Sounds like you are describing the CZ Custom optic system:
https://czcustom.com/custom-work/s-i...and-plate.html
You can even get a rear sight plate with standard CZ75 dovetail so you can put in any rear sight you like.