I have no experience with suppressors, but wouldn't the "damaged" baffles need to go back as well?
Hmm, I thought it was just the serialized part that was considered the suppressor. I've returned (and received back) various parts using just USPS in the past. And you can buy thread adapters, thread protectors and even pistons without going through the NFA process again.
Until I read this thread, I wouldn't have thought twice about the baffles (or other non-serialized parts) being the regulated part of the suppressor. Maybe I'm missing something, though.
I understand this law but the form one make you the manufacturer, thus you would be allowed to have parts to repair your manufactured suppressor? Is that not correct? The above law I thought was intended for those without an Sot or a form 1.