Based on first hand experience can anybody please give me some advice on how to drift the rear sight on a CZ Shadow. I removed the set screw entirely and pounded the crap out of it with a brass punch, but it didn't budge. Should I lock it down in a vise really tight, wind up, and pound it as if I'm trying to break out of a jail. Or is there some kind of trick to "break" it free.




















































