[ShadowAce]

A block of aluminum is a ‘ghost gun’ by those definitions.

*ANY* hunk of metal or plastic (3D-printed receivers have been produced), or the computer file used to 3D-print one is now considered a "ghost gun" by those definitions.

I'd even go as far as the ore pulled from the ground. It just depends how much effort is required to define something as a "ghost gun."

[Scrambler Bob]

I’d even go as far as the ore pulled from the ground. It just depends how much effort is required to define something as a “ghost gun.”
= = =

And if you are even visualizing doing this, your brain is now a ‘ghost gun’.

On a side note, about 1/2 of the population already has ghost brains.