It's totally possible to control 3D-printed guns. Perfectly? Maybe not. But it helps if guns are illegal, so police can stop people who go around carrying them.

It's totally possible to control 3D-printed guns. Perfectly? Maybe not. But it helps if guns are illegal, so police can stop people who go around carrying them. The way of manufacturing the gun really doesn't matter. Tons of "legal" guns get stolen, misplaced or sold illegally. Gun control is much more about restricting access as much as possible and making it hard for people to have an opportunity to use a gun. If you can just carry one around casually in your every day life, there are just too many opportunities for something to go badly.