The indictment said the charges were for the manufacture of of 5 ‘firearms’ with a bore larger than .5 inches.
12 gauge shotgun bores are bigger than .5” What is so special about that number?
The Federal agents could have asked him to make the bore .51 inch for them.
” ‘firearms’ with a bore larger than .5 inches “
Shotguns, I believe they are still called shotguns.
Unless they have a rifled bore, that is.