In this case it would be an untraceable/unmarked gun made cheaply. So for a couple of grand you can make many guns that could be used and unable to be directly

In this case it would be an untraceable/unmarked gun made cheaply. So for a couple of grand you can make many guns that could be used and unable to be directly traced like the mass-produced goods. They're all limited usefulness because of the lack of durability using a 3d printed gun. Compare this to a gun that's been scrubbed of it's serial numbers and any other identifying marks that would make it traceable, which is going to cost more since it'll require a decent amount of expertise to do properly too.