Ok thanks guys, try this on for size...I called the 1-800 number on the package for Carlsons and figure I'll end up talking to one of their customer service types or end up in voice mail **** of some sort. Not the case at all it turns out, first ring an actual live person answers the phone and wasn't a 100% sure and asks if I'll hang on a second while they go get "Scott".
Less than a minute later I'm talkin choke tubes directly with Scott Carlson and he advised similiar to what other's have posted here that they are interchangeable systems as Beretta is the parent company of Benelli or some sort of major shareholder in it I guess. Scott was awesome to speak with and we ended up talking hunting and shotguns for about 10 minutes. Outstanding customer service!!!