The Dawson sight does not fit the older CZ 75's or the Transitionals because of the dovetail depth. The Dawson sights are made for a depth not to exceed .114, all of the older dovetails are .133 or deeper. Although you can cut enough material off of the slide or the rear sight to force it to fit the front sight will be so short that half the rear is filled with the slide. This does not make for a very good sight picture.