For fathers day I would like to fix my dad's handgun. It was handed down to him by his father who brought it home during WWII. I have only seen/held it once so I will try to go be memery. It is a .357 double action 5 shot revolver. I was told it is a browning. The spring that pushes the hammer forward broke and about 15 years ago my dad tried to track down the replacement but the two gunsmiths that he talked to didn't want to handle the gun. Does anyone know where to track down parts for this gun.