Recently, I posted that I had obtained a used model 640 that came in a factory box with a factory label that said "used". Called S&W and spoke with a rep. and he told me that these were often guns that had been issued to sales reps.
Now here's the trivia, according to the rep, these guns are stamped by Smith with the letter "U" near the SN, in the case of my revolver the "U" is located between the SN and model number.
Now here's the trivia, according to the rep, these guns are stamped by Smith with the letter "U" near the SN, in the case of my revolver the "U" is located between the SN and model number.