What are the most reliable firearms that don’t need non 3D printed parts? I plan to print in PA6-CF unless someone can convince me PA12 is better, and I don’t mind projects that need you to tune your settings to hell and back.
I’m looking for a range toy/home defense tool. Handguns are preferred but I don’t mind other form factors. I plan to start with a harlot, but I definitely want something semi auto or slide action, I don’t like the idea of having to load after every shot
I don’t want my address to be associated with 3d2a so I’d prefer projects that don’t need kits or firearm parts, but if it’s absolutely necessary I can get my hands on a barrel liner.


I have an Urutau and it cost me about $200 in parts. It also requires buying a full AR-9 barrel or making one via ECM as there is no good way to make safe 9mm barrels using barrel liner. I also had one bolt failure and one OOB that blew up half the gun (both were build problems, not design problems), so I really don’t recommend it to inexperienced builders.
As far as NJ, 3D printed firearms are completely prohibited unless you’re licensed/registered by the state. You can’t legally print a magazine there, much less the rest of the gun. Even distributing firearms STL files is prohibited. All of which is in blatant violation of the 1st and 2nd Amendments, but they don’t care. I’m pretty sure us Arizonans aren’t even allowed into NJ any more - which is fine by me :)
Ah, so an FGC would be thematically appropriate ;). Do you know if a hypothetical new jerseyan were to print a hypothetical firearm in NY and drive it across a hypothetical border to NJ, would she, hypothetically, get in legal trouble if the authorities caught word? Hypothetically, of course. Actually why am i asking you, I should look it up, to satisfy my curiosity. Thanks for all the info/recommendations!
Transporting unserialized firearms into NJ is the same 2nd degree crime as manufacturing - punishable by up to $150k in fines and up to 10 years in prison.