Yeah, there are several variants (F, FS, combat, vertec, centurion, inox, brigadier, stock, etc). They differ slightly in barrel length, or have changeable sights, or grips of different materials, one has a heavier slide for reducing perceived recoil, there's a single-action only version, etc - mostly cosmetic differences. That said, I've only ever used the .380 and 9mm Berettas (both of which I like very much), so I don't have any direct experience with these. I would think they are freely substitutable without hardship. They seem more alike than different.