Generally speaking, a reflex sight would be installed by removing the rear sight, and installing a dovetailed block and sight base. The mount will depend on the sight being installed. The optic may come with mounting plates for different pistols.
This is a workable solution, although a CORE model is preferable if an optic is to be mounted.
See if Dlask or anyone else will kill the slide for you
See if Dlask or anyone else will kill the slide for you