How does it jam up? Is the slide closing on a spent case? How many rounds on the pistol? If it has over 5000 rounds on it it may need the extractor be removed and cleaned. Of course the extractor may be damaged. Some ammo as of late is pretty crappy....like federal champion or the value pack type stuff. Remington stuff not great either. If you are using quality full power ammo then it's weird. A 92fs is not a bad pistol and should work. Check your extractor. Is it chipped? What about the ejector?
What mags are you using? Are they original beretta? Are the springs in correctly? If they are in wrong that can be an issue.