User blog comment:ComradeMongol/3D printers/@comment-5553681-20130625135813/@comment-27877254-20160708211137

That explains their extreme interpretation of the 2nd Amendment, that all people should have assault weapons, even though they weren't around in 1791, and the amendment says you can bear arms for DEFENCE, NOT ASSAULT.

They want to sell as many guns as possible, sounds like a somewhat likely explanation.