I have an LC Smith 12 Ga. field grade that was made in 1916. Was having difficulty attaching and removing the forend.I separated the metal components of the forend from the wood. On the underside of the metal parts is thin metal piece that functions as a spring on each end. it is attached by a screw in the middle.The spring is broken. Can anyone direct me to where I might locate a replacement? I would appreciate any suggestions.