http://www.thefirearmblog.com/blog/2018/05/30/australian-secret-gun-factory/
About that whole civilian disarmament program in Australia thing, it doesn't work. Anyone with a basic knowledge of machining, 3d printing, and molding plastics can produce all the firearms, ammunition, and accessories you could ever need! Instead of dealing with the PERSON misusing a tool, the went after the tool itself. It has proven to be a failure.
The only thing this has accomplished has turned ordinary citizens who refused to turn in their guns into criminals, and criminals having to resort to making their weapons. Good on ya mate!