I've been looking at purchasing an older 92FS Centurion. I located one, but when I run the serial # in the Beretta website it says it's a "92F 9mm Tactical Cent" It doesnt say it's and FS. The slide on the pistol in question depicts a 92FS. Did they even make a 92 F in a Centurion is my question? Could the Beretta site be wrong? Could the slide have been swapped? I now have more questions than answers unfortunately. The Model # on the site says "SPEC0277A" with a manufacture date of 1998. Any thoughts or insight would be appreciated.