Thanks for all the great advice. It is a shortened 6 & 1/2 in to 5 &1/4, The front sight and rear site have been added. I know a bit of the provenance of this pistol and the man who originally owned it was military and a shooter. I am going to send for a letter on the chance that he had S & W do the alterations to his spec. It is not a bubba job so who ever did it did it right. Oh yes no refinish. Final answer.