I have had 6 scammers when I posted looking for a Mac10.
ONE went so far as using a real dealer's name, FFL and copy of their FFL. And also his email but was Yahoo instead of Gmail. He even contacted the dealer I am using for Form3 transfer. The only thing that saved me was he wanted 50% payment by money order. I phoned the real dealer and he had no idea this was happening.
DO NOT EVER, EVER, send money by any means other than credit card or Guntab.