Beretta maintained the same grip angle with their alloy-framed Vertec and Elite 1A so that they would accept standard Model 96 magazines. All mags that fit in the 96 series full-sized pistols will fit in the Vertec. If you can't find genuine Beretta factory mags, the only aftermarket mags that are half decent are the Italian-made Mec-Gar mags, but they have the irritating plastic "box" on the bottom instead of the flat baseplate of the factory mags, therefore will not accept the Elite rubber bumper pads.
The 92 series is 9mm, the 96 series is .40cal
I see Vertecs on sale for anything from $900 to $1000. An Elite 1A will set you back around $1200.