For the record, here in Canada "It is illegal to manufacture or possess a

3D Printing
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1

For the record, here in Canada “It is illegal to manufacture or possess a firearm without appropriate licences and applicable registrations.”

The laws exist for us independent of the manufacturing technology and/or materials used.
http://www.ottawacitizen.com/technology/printer+fires+debate/8346232/story.html

2

“I 3D-printed a gun! Make me famous for approximately five minutes!”
sigh
We all knew someone would succumb to doing this. Cue media circus.