All Australian states and territories ban 3D guns, but only some jurisdictions like New South Wales, Western Australia and Tasmania make it an offence to possess blueprints.
Experts are calling for retailers to play a greater role in choking the supply of 3D-printed guns in the wake of the Bondi shooting
Gun control groups are pushing for more laws that ban the importation of 3D printers if they do not have pre-installed software blocking firearm parts from being manufactured
Retailers offering 3D printers or 3D printing services would report customers suspected of building 3D-printed guns to the authorities under fresh calls for corporate Australia to play a role in thwarting access to the deadly weapons

In the last 30 years the US has lost 1.5 million people to gun violence. That is more than every single war we have ever fought combined. Almost everyone in the US knows someone who has been shot and killed.
Most countries don’t want to replicate this insanity hence common sense gun policy.
The overthrow your government thing is just a marketing technique to get people to buy guns. Looks like it works great for you.
The 3d printed gun fear mongering is the opposite of “common sense gun control” though. It’s like tryign to mandate government backdoors for encryption, it’s intellectually bankrupt and the politicians and lobbyists who push for that crap shouldn’t be allowed to live on their own, let alone run a government.
I think it should be against the law but I don’t like the idea of trying to “pre-cog” prevent it though. You can also easily make a zip style gun in your garage. That should be illegal to, but we should not be banning the parts or tools to make it.
I suppose they would argue there are protections we already allow like in regular laser/inkjet printing to prevent money forgery and to track prints.