That's a terrible price for a regular Beretta 92fs - you can get a new one for less. I bought my Beretta 96 (same pistol, but chambered in .40SW) for $300 used and it came with three aftermarket magazines in addition to the two factory ones.
92S In order to meet requirements of some law enforcement agencies, Beretta modified the Beretta 92 by adding a slide-mounted combined safety and decocking lever, replacing the frame mounted manual thumb safety. This resulted in the 92S which was adopted by several Italian law enforcement and military units. The later relocation of the magazine release button means these models (92 & 92S) cannot necessarily use later magazines, unless they have notches in both areas.
92F (92SB-F) Beretta modified the model 92SB slightly to create the 92SB-F (the "F" added to denote entry of the model in U.S. Government federal testing) and, later, the 92G for French Government testing, by making the following changes: Design of all the parts to make them 100% interchangeable to simplify maintenance for large government organizations. Modified the front of the trigger guard so that one could use finger support for easier aiming. Recurved the forward base of the grip to aid aiming. Hard chromed the barrel bore to protect it from corrosion and to reduce wear. New surface coating on the slide called Bruniton, which allegedly provides better corrosion resistance than the previous plain blued finish.
92FS The FS has an enlarged hammer pin that fits into a groove on the underside of the slide. The main purpose is to stop the slide from flying off the frame to the rear if it cracks. This was in response to reported defective slides during US Military testing.
Bought ours brand new at (shudder) Cabela's for 600$ tax included. That was 6 months ago, with the grey rubber grips (the wifey loves them, but she's now eyeing my P226 Elite Dark!).
1911 Fan quote in memoirium about carrying: The purpose of a firearm in a defensive situation is to make the other guy leak from holes he was not born with. Your job is to install those orifices for him.
I don't know if it's still the case, but the Italian ones used to come with 3 mags new vs 2 with the US-built models. It's a crap shoot trying to find a specific one, though.
And to echo the above...$625 used is borderline criminal. At least $200+ too high.
Back to being just a guy. No, not that guy. Or that other one either.