The Imura Revolver 3D Printed Gun

[laneinator]

There are a whole lot more hobby lathes and mills in public hands. They make real guns, but you don't hear any of this nonsense about those.

This.

People who want a gun, are going to get a gun. Is 3D printing another outlet? Sure, it may be.
However, you can build a much better, more reliable, more accurate gun that has the same traceability with some simple hobby mills.