New to cz pistols and looking for some info. Slide stop spring fell out. Is this a normal occurrence. New to me first time buyer of a cz. Just took slide off to clean the gun after shooting and the slide stop spring easily falls out of the gun. Also the small pin seems to be held in place with the spring fitting inside the groove. Luckily I did not loose the small parts. Do I need a new spring? Thanks in advance. Reposted here. Not much luck in the other CZ forum.