Zig Forums...

Stop this. It's the most retarded thing you can do when posting links.

this things a meme, better off looking elsewhere

If you have a CNC machine, making an AR receiver is dumb. A turbine has so much more worth and utility.

There are stamped AR lowers, I have seen them, why is everyone obsessed with milling and 3D printing?

Machining is a great skill to have, even the shittiest machinist can make awesome homemade guns. 3d printing is a meme.

Could you build a machine to stamp a receiver from scratch (or finish the sheet metal equivalent of an 80% lower) automatically for cheaper than a Ghost Gunner? Would the ATF allow it? Is the performance and robustness up to par with the off-the-shelf equivalent?

If you can design something that answers yes to all these questions, then you should go make it right now. That's a million dollar idea.

Yes. I could make it. An AK stamped receiver is so easy a retard can make it with pliers, hammer, and an anvil. I can't imagine an AR receiver is impossible with a garage full of tools.

Hell no… but it would be easier…

You can get AR flats for like 30 bucks, but you need to be able to weld. Personally, I think welding is easier. You still need to drill and tap some holes.

you just need some gears and spokes

Just look up the parts that they use and replicate the exact same thing. Cody Wilson doesn't believe in IP or patents so you're free to do what you want.