Ohio is kinda a hot bed for class 3 dealers. I know there was a former dealer in Wooster that sold to another guy about a decade ago. I suspect it"s LW Firearms...Wooster Ohio. Just going by foggy memories of a story someone told me. Wooster is about a hour from me.
I really worry the guy that chopped the toy MP-40 and others, was not knowledgeable enough to do diligence on checking the registration status of these before chopping them.
Accidentally bought a bolt and barrel for a 9mm a few years back. Parts were stamped "36". Not even close to fitting a US gun they looked like 2/3 scale.
Ok I'm striking out. Mentally it's one of the old school parts dealers...The guys name. I bookmarked it a year ago so I could buy one. Can't find it now.