I posted what I put below.   The horse has been out of the barn for a long time when it comes to actually reducing weapons.    Autralia used a buy back program, but we're talking a very small population in comparison to our own, as well as much smaller numbers of banned weapons.

There would be fewer problems with weapons if all gun owners had your sense of safety and responsibility.    But they don't.  Blankets stereotyping of gun owner, from either side, are just poltical propaganda.     I can tell you I know very responsible gun owners.  You can tell me of a few drunken fools with guns who are a harzard to almost everybody.  

We haven't even touched urban warfare because I don't think either of us has lived in a neighborhood with nightly gun shots - at least I haven't.  Why do we fail to protect the citizens living in cities that are a shooting gallery of crime?