"TRITIUM NIGHT SIGHTS FOR USE ON RAMI ONLY" CZ-USA offers two versions for the Rami -19202E and 19202F, but offers little explanation of the difference between the two.
Cajin GW seemed to favor the "F" version, so that's what I put on my new Rami 9mm. It is made by Tru Dot, and came from CZ unpackaged for $85.
These new sights did not fit as tightly as the original ones. The rear one shot loose, and needed Loctite on the set screw to keep it centered. I had to dimple the front dovetail to make the sight fit tight. It shoots dead on for windage, and about a half inch high at 10 yards, bench rested. They are bright enough, day or night.
So, how does the "E" version differ??