lainchan / Δ
How garbage are 3D printed weapons?
Bob Arctor · 2025-11-13 08:55
i was under the impression they were mostly dogshit as for making a 3D printed weapon that wouldn't blow up in your hand after 6-18 shots you'd need machined parts that could effectively seal the gasses and even so it'd probably just do you good for like 50 shots at best
but i just heard the FGC-9 actually requires no machined parts and you can essentially buy these online disguised as anything else just like estrogen goes disguised as skin care products from online pharmacies
as well as apparently airsoft springs can work for the magazines if you can't get glock ready parts?
how stable could this design actually be?
also why did Russia and Cuckraine started carrying 3D printers to print AP mines and soykaf? knowing how long 3D models can take wasn't it easier to just carry literally any kind of molds?
did they stop doing that? or did they just hope they could rely on the redditwaffen division?
Nanashi No Gombe · 2025-11-13 16:17
>>13294
90% of this OP can be addressed by skimming: https://en.wikipedia.org/wiki/List_of_3D-printed_weapons_and_parts
tl;dr:
3D printed firearms*** are fairly viable. ***: because almost all of them require metal components for certain load bearing areas. Also, magazines are finnicky to make. Also, also, ammunition is very painful to make.
>how stable could this design actually be?
1000 round torture test passed just fine -> https://www.thefirearmblog.com/blog/2020/10/29/awcy-3d-printed-scz0rpion/
see also:
https://lainchan.org/Δ/res/10901.html
https://lainchan.org/%CE%94/res/11756.html
Masami Eiri · 2025-12-31 06:21
FGC-9 is used in Myanmar. 3D printed gund are supposedly getting better but legally it's an ehhh area or outright illegal
The Fin · 2026-01-01 17:26
>>13294
You cannot actually 3d print a gun at any reasonable price (meaning on 3d printers below 1 million, probably even more). The only possible tech that may, MAY come close to manufacturing the necessary properties of materials required for firearms would be anything direct-energy deposition "near net shape". So powder bed fusion is right out, leaves powder funneled directly into a laser/electron beam and stick fed into same beam. Basically CNC-controlled TIG welding (oversimplifying here).
That being said, you can 3d-print the *legal definition of a gun* fairly easily. Because that one may be just the receiver, which may not require any load-bearing parts (like the ignition chamber would)
Incognito · 2026-01-01 20:16
>>13427
I am not interested in making guns but you do not have to print in metal or use a CNC to produce metal parts.
Spooky · 2026-01-01 22:13
>>13427
>>13427
*AR-15 ban proposal intensifies*
Turner · 2026-01-03 11:35
>>13428
>you do not have to use metal to make metal parts
>you do not have to use water or ice to make water or ice parts
I am sure there are some very clever ideas hidden behind those words but from a distance you sound like someone who could tell me which glue is the best just by the taste
Nameless · 2026-01-03 13:29
>>13432
I mean you can kinda just use like random pipes and stuff if you're trying to go full ghetto, and obviously there is Milling and then there is CNC Milling. Lain is probably just being a pedant.
I'm pretty sure some people have made some fully 3d printed guns not out of metal that have been 'viable' to some degree. Obviously wouldn't trust one to be reliable and iirc none of them would even run 10 cycles without catastrophic failure, but its technically kinda possible.
A lot of even the 'nice' metal 3d prints I have seen would be in dire need of a finishing pass to make a half decent barrel.
Hououin Kyouma · 2026-01-03 17:22
>>13432
I meant it isn't hard to figure out since it is something jewellers already do. It's another question as to whether it is good enough.
Dr. X · 2026-01-04 10:39
>>13433
>random pipes and stuff
IIRC the barrel of an FGC-9 is an "explosion-proof hydraulic tube" you buy on aliexpress, then electrochemically machine the rifling in a bucket of saltwater using a 3d-printed rifling tool.
Zhora · 2026-01-19 05:54
>>13433
>>13434
How is this 3d-printing anymore? That's just making firearms the traditional way in your backyard shed.
Obviously it is possible to make guns in this way, people have been doing it for centuries
Dozer · 2026-01-29 18:58
>>13457
The Lain talking about pipes isn't the same person just someone that responded as if they were if that helps you get my clue.
Yet Another Lainon · 2026-02-11 07:21
>>13294
Ignore the trash-posts, the answer is "pretty good, actually". These range from mostly-printed Orca AR-15's, which can be all 3D'd but the barrel, to printed-only (barrel threads are Electro-Chemically Machined from pipes with a printed jig and wires) FGC-9's, which are used in civil wars in Southeast Asia as we speak.
For more information, I recommend the YouTube channel PrintShootRepeat (PSR), as he provides a semi-humorous explanation of the latest and greatest regularly. Topics range from Glongs to printed-furniture submachine guns.
Batou · 2026-02-25 20:50
>>13294
The main good things to 3D print are accessories and replacement parts. A 3D printed weapon in a war is used to get hold of a better manufactured one.
Frank Garza · 2026-02-26 05:26
3d printed semi-automatic crossbows are genuinely viable, they have a stealth advantage from being silent too
Pulse · 2026-03-09 14:49
>>13532
Where is that img from anon
Ender · 2026-03-09 16:30
>>13514
>orca ar15 can be all 3d'd but the barrel
hoffman tacticals documents I've seen are expecting a whole kit of parts (barrel among them) that arent three dee printed. Link to someone making it work (well?alright?idk?) in a full 3d printed variant please ?