While browsing the internet for all sorts of interesting things, I ran into the defcad.org website showing that it was taken down by the government for various alleged acts.
The Firearm Blog post on it mentioned the possibility of it being an April Fool’s prank.
Nice one. “Hey, you believed something I said. Jokes on you today, that’s what you get for trusting people.”
Worst case is it is real. Which impresses me that Defense Distributed managed to figure out how to make an undetectable gun, since other companies with larger resources have never made the concept work, they’ve always had to have metal in firearms because of the stress on parts.
Given that, I’d bet it’s just a prank. Not a terribly funny one, but a prank nonetheless.