I can confirm that the CZ Custom shop frame mount won't work on a stock CZ TS Orange until you mill a slot on the underside of the mount to clear the rib on the top of the slide. Recently I bought both the frame mount and the slide mount at CZ Custom Shop while I was in Phoenix visiting my daughter's family. The slide mount fit my slide perfectly and I mounted a Viper 3 moa red dot to it. 1500 rds later nothing has loosened up and it works great. The part can be found here. https://czcustom.com/cz-parts-all/red-dot-mounting.html I am currently having a friend mill the slot needed in the Czechmate frame mount so I can mount the Viper red dot to the frame. I like the idea of less shock and battering for the red dot. Ideally I would like to fabricate a mount to put a Matchdot optic close to the slide but not on the slide. I realize that in competition I would be at a disadvantage for a pistol with a frame mounted optic but I only shoot at club level events so no matter.
