The politicians have been angling to go after printed guns for a while now. They thought that the courts might help them out. The courts however recognized the constitutionality of such guns, and at least as importantly the protection of the plans for these guns.
Schumer’s long been an opponent of 3D printed guns. Now Trump?
(From The Daily Caller)
Trump said he had already spoken to the National Rifle Association about the issue and that it did not appear to make much sense. The issue of 3-D printed guns has reached a fever pitch in recent days after a Texas non-profit organization won the right to post the plans for such weapons online for public consumption.
Several states have intervened to ask the Trump administration to federally ban such firearms.