Been looking for a shotgun for a while and I was planning on a 500 or 870, I saw this at Cabela's for a steal and fell in love. Stevens 620 is a pump action of our Patron Saint, John Moses Browning's design. While it may not chamber 3 inch loads or have a lot (or any) aftermarket options, it's much like any other pumpgun save for the fact that it's a takedown. The reciever and barrel/magazine assembly are joined via milled ridges and tension from the magazine tube. The gun has a 28 inch barrel which is fine for the field but not for the home. I'd like to get an additional barrel to cut down to a suitable combat length for the gun but seeing how there was much more hand fitting in gun manufacturing when this was made I'm worried a barrel from another gun won't match up. Anyone have experience with production takedowns and older designs that could maybe tell me if this is a worthwhile endeavor or should I just keep it a hunting gun?