3D printing

[Benanov]

So I'm new here. (Well, at least as a firearms owner, and to the boards in general, but not to PA).

I was living in MD, and the legislators down there, when they weren't raising taxes, they were taking away firearms rights. Quite a few got their panties in a wad about 3D printing and tried to ban 3D printing of firearms parts explicitly (considering that the bans already covered manufacture of banned items/parts, this was some lobbyist putting a buzzword in someone's ear).

Does anyone have any success stories (or horror stories) with printed parts? I'm thinking about purchasing a printer soon and trying my hand at less difficult stuff - mounts, grips, magazines, etc.

Also, where does the "you need an FFL" come in with manufacture? I know I'd need one of the types to sell a firearm or lower, but unsure about personal manufacture of accessories, or the AR lower itself.

For the record - I have a machined Al AR lower. I don't need to print one. But I want to know where the boundaries are before I even begin.

[hawkinsje]

In Philadelphia you cannot print a reciever . Also all nfa items would require nfa process.