There's a 325 that looks just like a 425, well, within limits, it's an Invector Plus gun.
Then there's the imported 325 European, yes slim, handles very well and has ~.725-7" bores. This is one fine shooter, but if you want one, and you don't like whippy guns, be sure and get a 32". It moves like a Perazzi. Litt imported a bunch of these. You won't find much gold/glitz/and glamour, they're business. They aren't ported either.