BERETTA M9 "DOLPHIN"

According to the informations provided me by UGO MUFFOLINI (the fine folk webmaster of WWW.BERETTAWEB.COM), the BERETTA M9 DOLPHIN semiauto combat handgun is not an "original" Beretta product, but a custom modification by a small USA manufacturer. Mr. Muffolini told me to have seen it in a SHOT SHOW, some years ago (he remembers in New Orleans... is it possible?), and to have tried to acquire it, but it fires the .9x19-Parabellum round, so he would not be able to do so (ok, at least... I suspect mr. Muffolini to be a BERETTA employee, so maybe he would have been able to get it in order to add it to the BERETTA COLLECTION, placed in the BERETTA headquarter, at Gardone Val Trompia); furthermore, the M9 DOLPHIN was produced in very small number. Any further information coming from you or any other co-operator is welcome. The M9 DOLPHIN is a "closed bolt" pistol (when the gun fires and the slide goes back, only the EJECTION PORT opens, not the whole barrel, as in other BERETTAs).
I remember to have spotted somewhere on the web, VERY, VERY LONG TIME AGO, a picture of this gun with a 25 rounds magazine in (as the BERETTA M93-R's one). Maybe that one was just an airsoft copy, because it was from a japanese website, but, as the airsoft replicas exactly reproduce the original pieces of weaponry, is it possible that the M9 DOLPHIN was a select-fire "Machinepistol"?