At my suggestion a friend of mine who is a new shooter bought a CZ-85 as his first pistol. It's an older model marked made i Czechoslovakia and marked with AAI Phila. PA. It was NIB.
His (or really my problem since I told him I would fix it) is that the elevation screw in the rear sight is not tight and moves around when you fire it.
I have taken it apart and found a little piece of stamped sheet metal that looks like a T with a bent tail. The tail of the little bent T has a tit on it that looks like it is supposed to catch in the slots on the bottom of the rear sight elevation screw. It catches, but not enought to hold the screw tight.
Is the rear sight missing a spring that applies upward pressure on the little piece of metal with the tit on it ?
Or is this piece of metal supposed to be springy enought to catch and hold the elevation screw ? Our is there something else wrong I am not seeing