If you have any questions about these guns, ask Mark Serbu. It may take him a week or two to get back to you. He answered all the questions I had before mine was ordered. I can't see why a left handed 870 wouldn't work as a Super Shorty. I don't think they do any work to the inside of the receiver, just the action bars, the barrel, and magazine tube.
Obligatory SSS pic. Mine is one of these three guns. Should have it any time now. Any time now...
