After the gun controls come in, if the National Guard or the police call to your house, give them your frickin guns. Who's left?
The people who insist on keeping guns in their sock drawer and stay quiet about it and aren't registered gun owners, or are registered and have slipped through the net. They run the risk of prosecution, but hopefully we won't hear from them again, save for the odd killing spree by some mess of a guy, or a domestic situation.
But there'll be FEWER of them. Other people left with the guns are the gang members, and the smugglers, and the militias, and the Sopranos, and the punks. The point is guns = criminals. And if you meet Tony Soprano at the country club, or a drug dealer in the street, he's not about to shoot YOU. He's after Phil Leotardo, or the pimp who kicked him out of the brothel last night for dealing bogus crack to the johns.
If you're held up at gunpoint or shot, that's an aberration. In five years' time, when you're mugged by a guy with a syringe, you'll be praising the Lord that there are fewer guns.
And these thugs won't be able to hide behind the centuries-old Constitution-enshrined normalising of gun culture. They'll be easier to spot because guns are such a rarity. Police won't be shooting the fleeing violators of traffic infractions in the back either, what with being so jittery coz there's so many damn guns. They will shoot when shot at, like any well-mannered and respectable police officer should. And that will remove further gun threats, and you continue to chip away like that. And anyone found with a firearm is arrested, and they're prosecuted to the fullest extent of the law. Because it's NO LONGER NORMAL.