I stripped my ruger p 90 to clean it than when I was putting it back together two pins located on the back of the frame camout along with a small srping and two small metal objects. I know both these small metal objects are held in by the two pins that came out. One of the metal objects holds the small spring in the back close to the hammer. I just don't know how exactly they go back in. Please help me. Any input would be greatly appreciated.