Rights are chipped away one small chunk at a time. Usually with a guarantee of security in it's place. We can't allow a ban of any kind and should lobby against it at every opportunity.
When the first ban went into affect, manufactures changed the cosmetic look of the guns to fit within the rules of the ban. If a person with criminal intent wanted his gun to be shorter he could then, as always, cut the stock and/or barrel. The point is that someone who is going to break the law does not care if the tool he uses is legal or not. If the liberals or conservatives want crime control then they will regulate criminals. Don't be fooled by any promise of making your streets safer by the elimination of an object. The goal of all gun bans by type is to remove firearms of all types from the hands of law abiding citizens, one type at a time.