Howdy! My name's Jon, I'm attempting to locate an old H&K USP in 9mm for an old friend of mine. She was a cop in a rural small town in Missouri  during the 90s when the pistol was stolen, recovered and it had its serial number scratched off. The ATF issued a new serial number and it was pinned on. I know it would be a miracle to find it, but I would love to buy that gun back for her. Thanks.