Stock dimensions are 1 7/16" X 1 7/8" X 2 1/4", 13-7/8" LOP, semi-Monte Carlo stock w/ tighter radius pistol grip. Personally, I'd like to see the LOP even shorter, for the more diminutive shooters out there. It's easier to add LOP than shorten it.
Beretta has since updated their page to include the model descriptions: (
http://www.beretta.com/en-us/690-field-i-vittoria-series/). I just think their website updates really lag behind their product offerings. For instance, they're calling it the "690 Vittoria
Field," but Joel Etchen currently is advertising a 12ga/30"
Sporting model, as well as a 20ga/28"
Field model. Not sure if there's any real difference in design btwn the two.