“What are those worth? $1000?”
Try $15,000. This is not Andy Griffith’s “patrol rifle.”
For a legal one, with the requisite paperwork and $200 tax stamp, I'm guessing $25,000 and up, if your state allows.
(Who would WANT one with no paperwork, no tax stamp and no way to trace it back to anyone but the trooper, mere possession of which would qualify the possessor for a long stint in Federal prison? I'm guessing it's NOT a collector.)