This is cool, these guys developed a 3D printed AK-47 receiver that actually works well:

Their company is DNO Firearms.  A long torture test video, where they shoot it to failure (397 rounds 😲):

4:03 – Transition to pistol!  haha… seems like a feature to me.

From the video description:

This 3d printed receiver held up to 397 shots. The original video has the first 30 rounds and this video shows 367 more. The video is long and I tried to keep it as short as possible but in order to show the full round count it had to be this way. If you would like to skip ahead to see the final failure it’s @ 16:50 and you can see the upper disassembly @ 21:27

Filament used for receiver : https://amzn.to/2K8zYsT

Cheap practice filament: https://amzn.to/2K6i1Lp

3D Printer: https://amzn.to/2SX8jxv

This 3d printed gun thing is going to keep getting more and more interesting.  It’s too bad Cody Wilson can’t touch guns for the next 7 years (😬😬😬), because he was also doing a lot of interesting stuff with Defense Distributed.

Brandon made up a video talking about this receiver, and why his own version failed.

Thought?