This is a roller locked pistol as I'm sure you have read about online. Until recently these pistols were sold for as little as 300.00.
Various reviews praise or warn about wear regarding the lock up system on these pistols. Although I don't own one, I can tell you that
when I had the chance to throw a few rounds down range from a fellow shooters gun, the 52 is a smooth shooter. The web warnings of wear
issues regarding the roller lockup turned me off from buying one. BTW Czech weapons of any ilk are high quality. I even have a CZ 38 which is
one of the most maligned pistols ever, and btw a good shooter. If your 52 is not really beat up , go for it. In hindsight I would have picked one up
had I not read what were probably reviews based on unlikely scenarios regarding worn surplus guns.