I don't think this has anything to do with litter, or available funding, or anything else along those lines. This is a blatant effort to sneak additional gun control through the back door.
In some respects gun control is important. i personally I don't want the seriously mentally ill or certain types of violent felons to have legal access to firearms. Beyond that gun control shouldn't mean anything beyond a proper grip and a correct shooting stance!
The idea that we should allow our government to restrict legal activities on OUR OWN LAND is ludicrous. It's another reminder that "democracy" is nothing more than two wolves and a lamb voting on what to have for lunch, but liberty is a well armed lamb contesting the vote! The day they take away our rights to keep and bear arms the United States of America as we have known it will disappear. The wolves will be in control, and they will not stop with the 2nd amendment.