Just a thought about plastic guns made with a 3D printer.
I know plastic technology and printer technology are far, far advanced these days and amazing. But as far as I know, plastic rifling in a plastic gun barrel would only be good for about a half dozen shots at best with any kind of accuracy. As far as I know plastic springs and fasteners technology is hardly reliable for any lasting durability and as long as the plastic 3D printed gun is unloaded it might well be indictable if all of its parts are plastic. Once a bullet is installed in it, OOPS! It's now detectable by a metal detector, unless somebody knows there's such a thing as an "all plastic" bullet.
I think the leftist hysteria about 3D printed plastic guns is just more pure horse manure! They need a new issue every day now that the midterm elections are getting closer. They'll adopt any stupid issue and hysterically promote it as a political disaster that only they, the left can fix with more government and thereby, more hysterical horse manure spreading Democrats in offices of government power.
Government is force by definition and corruption by nature. The BIGGER the government, the BIGGER the force and the BIGGER the corruption!