While at the range last week, the grip on my 52-1 loosened up so I put it in my range bag and went home. When I went to clean the gun the next day I noticed that the grip screw and the frame stud/bushing were missing. I have called S&W and several other places and can't locate a replacement (I have the grip screw). Does anyone have a clue where I can locate a frame stud? It have to be round, not hex, to fit the grips. I will appreciate any help you can give me.