Can anyone clarify what a "ghost gun" is?
Isn't the original meaning "no serial number" (untraceable)
But seems like today's definition by politicians are "you can make it at home". So in their thinking, wouldn't an 80% lower be the same? Which the ATF ruled as not a firearm.
I did read somewhere that the machine needed to make such plastic prints cost $250,000. As in you can't go to Best Buy and buy a 3D printer for $500 and make one.
1) Same as a 80%, so not a firearm?
2) Expensive printer?
3) Still needs real metal gun parts. Like a barrel, BCG, firing pin, etc.... A plastic barrel would probably break/hurt the shooter.?
4) Couldn't one just use hand tools on a block of same plastic and make a receiver?
5) Have someone else buy a lower for $75 and scratch off the serial number. So printing your own cost to much and takes more time?
The actual term is a made-up California phrase, exactly the same way "assault weapon" was invented. They needed to call a class of firearm "something", so they picked a name that invokes negative/scary images.
The real definition is an unserialized gun with no records of manufacture or transfer. Basically, if a ghost gun is left at a crime scene without prints/DNA, there is almost no way to trace it to anyone. With the way science is now, it's getting harder to be anonymous. Firing pin and ejection marks on cases compared to cases found elsewhere, rifling on bullets from other crimes/locations, etc. can help narrow the list of potential operators.
A firearm produced by a private individual -- not for sale or trade -- is legal. That includes all the stuff you mentioned.
Scratching off a serial number doesn't make it a ghost gun. It was tracked by the maker, wholesaler, retailer, NICS and in Hawaii, the police. Removing the serial number makes tracing it harder, but not impossible. And since there is a paper trail on the gun, it's not technically a "ghost".
As for 3D plastic guns people are paranoid that might defeat detection at airports, there is actually a law for this already: THE UNDETECTABLE FIREARMS ACT of 1988
https://en.wikipedia.org/wiki/Undetectable_Firearms_Act