I bought this 38cal Officer 3rd Target model as a shooter. Serial 631580. It has the heavy barrel. I think the sights, hammer, and trigger are not original. The lead in areas of the bolt stop slots on the cylinder have had the blue removed. I think the stocks are correct type but not original as they have "bay head police dept" penciled on them. Can anyone comment on the parts and if they were used by shooters in the past?