To start up, a couple of miscellaneous files.
First file is a simple rifling tutorial that dosen't require specialized, expensive, fancy machinery or tools that i believe it was posted here somewhere around a year ago, incredibly handy knowledge, Mark Serbu posted a method that may or may not resemble what was showed in the clip, but it got nuked real fast and i couldn't find shit in the archives.
Second file is a guide for cheap few-shots disposable silencers(old-stuff but it can be useful), third file is an almost 100% 3D-printed silencer that's probably the best open source silencer of its kind, made by deterrence dispensed.
The following four files are homemade-ammo tutorials, they are kinda old but still pretty much as useful, the rest are up to date files by deterrence dispensed, incredibly detailed shit and the second one goes all the way into lead-melting, you can see a clip in there directly out of one such zip-file, the guy is super serious about his stuff so you can pretty much take his clip as proof.
Deterrence Dispensed: https://youtu.be/jlB2QV5wVxg
3D-printed glock files from an anon posted here recently, third pic is a project he was working on, a supercheap shorty meant for euros, the thread died before he could post an update but hopefully he stumbles upon this thread, interesting stuff.
Archived thread: https://mlpol.net/mlpol/archive/298568
First file is a classic, expedient's 9mm SMG, it's a pretty popular design that was posted here back in 2018, second pdf is another design based on expedient's guide, while the third pdf is an stengun guide, they are pretty similar and they both require trial and error to finally get them right from what i've seen.
Royal nonesuch's 45.acp SMG, disassembling and test-fire, again pretty similar design.https://archive.org/details/youtube_UCnxygDVG8bdDIczIOQgfLgw#
The RN-9(royal nonesuch-9?), is my personal favorite, however i couldn't a coherent guide about it, here's a cool clip of it.https://archive.org/download/youtube_UCnxygDVG8bdDIczIOQgfLgw/Homemade%209mm%20GREASE%20GUN%20Test%20Fire%21%21%21-7QL9a0HAzXw.webm
Are there no 3d printable automatic shotguns?