Just got the gun out of lay away jail and found the " U " stamped on the bottom of the trigger guard. Thank you everyone for the information. Greatly appreciated.
I was at my local gun store and put the below on lay a way. I looked in the S&W Reference book and may of found that this S&W 6450 maybe a transition model that was made for the RSR distributor in 1991.
The mystery begins with the S&W label. It states Features: USED GUNS, Spec Ord: USED? I...