Do the old 20 gauge M1 stocks and forearms (without comfortech) fit on M2s? Y'all might be tired of this question but do the barrels mix and Match? I haven't seen a real clear answer in the last 13 pages. Also, will any of the wood stocks and forearms from other Benelli 20 gauge guns fit on the M1 or M2. One more...Will the longer 28" barrel from the Cordoba fit on either one of those other guns I mentioned? Thanks, everyone