As long as this thread is being discussed, maybe you can shed some light on a model I have. It has a second generation slide and sights but the frame is definity a third generation as it has the grips of a 5906. It ihas a round trigger guard. It is stamped 5906. It has the third generation safety levers, not the one that has the Phillip head screw. When I inquired from Smith & Wesson about a stamp on the frame,PCSP I was told it stood for Pueblo Colorado State Police. I am curious to know if this would be considered an Interim Model or if the State Police just ordered it that way and the factory was just using up this second generation slides. At any rate , it is a beautiful pistol.

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joseph whitney