You can make the part that is legally considered a gun. There is one guy that made a completely PLA gun, but it used special custom ammo.
There's multiple designs that just need a trip to the hardware store to complete.
Well, for a Glock that'd be a Lower Parts Kit, a slide (with barrel), locking block, and rails.
For some guns, like the HiPoint C9, a kit usually has all the replacement parts you need.
The specific parts you need can usually be found in the instructions for the 3d print files.
PETG tends to have more flex to it than PLA+, which can be an issue if a design wasn't made with that in mind. I've played around with stuff like PA-CF, but PLA+ is cheap.
We are long past the days of the one shot and it breaks liberator pistol.
I've fired hundreds of rounds out of my Glock 19 Schnitzel without issue.
And I understand that not everyone can get their hands on a high quality "real" parts kit, but it's not just frames that have come a long way. But even the single shot guns have gone a long way!
I've got a Harlot with a dime breech that I've put dozens of (admittedly .22 short) rounds through. You can build one of those for like $20-$30.
There's plenty of other awesome builds that can withstand hundreds or even thousands of rounds, made out of good ol' PLA+.
Balancing my desire to post cool photos with my OpSec desires. Might set stuff up for it soon.
I'm a big fan of copper frangibles myself. They have less over-penetration risk, as a bonus, but they can injure someone just as well.
You can also shoot on public land, or an outdoor range, rather than an indoor range which often ends up with large amounts of lead.
Stay safe, and stay healthy comrades. Your safety doesn't need to come at the cost of your health.
It's just like the California micro-stamp laws, where technically the technology exists, but in practice it just restricts everything.
Requires a criminal history background check for the purchase of a three-dimensional printer capable of creating firearms; prohibits sale to a person who would be disqualified on the basis of criminal history from being granted a license to possess a firearm.
Hopefully won't pass