You don’t need to make the gun all plastic. Just the part which is the “firearm”, per BATF definition.
Take the Glock, for example. The plastic frame is the piece with the serial number. I can buy a replacement barrel over the counter. I can buy the trigger assembly over the counter. So if I create a Glock frame, I can buy everything else that’s needed to make it a working gun for cash without paperwork.
Same thing for many other handguns and rifles. For an AR15, you just have to make the lower. The upper, with the barrel, you can buy for cash.
“You dont need to make the gun all plastic. Just the part which is the firearm, per BATF definition.”
It doesn’t have to be plastic at all. We’ve been bending flats for AKs for years. Since those start life as a sheet of metal, it has no serial number.
The frame on a Glock is not all plastic, just mostly plastic.
You. An purchase 80% complete lowers, that have no serial number, for less than $50. You can then purchase a jig and drill a few holes for the safety switch and trigger guard; and you are good to go.
Untraceable
Did you mean that the Glock's polymer frame is the only part with the serial number?
There are 3 matching serial numbers on a Glock, one on the barrel, the slide and the polymer frame.
Perhaps I misread what you meant.
If you live in a free state, you can buy a complete 80% frame Glock 17 parts kit in one single box, which contains all genuine Glock pieces with the exception of the non-serialized 80% frame and the jig. It even comes with a Glock case. (Reason magazine has an article that shows how their reporters/writers build this.) It costs about $100 more than a genuine Glock 17 -- but that isn't the point, is it? The beauty of the Glock 17 kit is that it takes less expensive and less sophisticated tools to complete it because it's made from polymer, not steel or aluminum. I'm a John Moses Browning fan but if I lived in a free state and wanted to build one, that's what I'd look for.
I think this battle was lost by the gun grabbers quite a few years ago. The only reasons I can think that the gun grabbers are focusing on "undetectable" guns (dangerous to the user and outlawed eons ago) now is that they don't understand how firearms work or maybe they do but they are deliberately lying.
“Same thing for many other handguns and rifles. For an AR15, you just have to make the lower. The upper, with the barrel, you can buy for cash.”
Guns have been made in people’s homes, garages and workshops since before the Revolutionary War, and that isn’t going to stop. All that the 3-D technology allows is for everyone to be able to do this more easily. This tech is also out there, and isn’t going to go away. The agreement that the Feds reached with Defense Distributed is the right way to go - power to the people, THAT is the essence of Liberty.