For a real collectable try getting a K-38 with a FIVE inch barrel. Very few made. This was a special order for Missouri Highway Patrol back in late 60's or early 70's....A few members here are a lot more knowledgeable about this revolvers than I am. I remember shooting against some of their members in PPC matches. the 6" was not allowed subsequently we basically had to shoot 4' revolvers. The Highway Patrol could shoot the 5" as it was not banned as it was a issued weapon... At the time the late Roy Bergman was their top shot, and was unbeatable. I doubt that the extra inch made any difference with him as he was a machine even up until his untimely death. Long retired he traveled for the NRA as their rep for Police matches...A great revolver, and a greater shooter and guy all around....