They put rfids on railroad cars and horses, so plastic or steel or flesh, so they can be on metal guns too.
True!
I had a TS clearance in the military too, they can find me if they need too. For all I know, that lump behind my ear was put there by someone wearing a black cloak with a dagger....

They're gonna be pretty bored when they go back through my history though, at least the last twenty five years. The first twenty seven were HELL on WHEELS.....
