I know S&W calls it a Mainspring Swivel, but "Spring Seat" strikes me as more appropriate. No, they don't need to be plastic, the originals going back to the 1950s in Improved I-Frames and J-Frames were always steel. It was sometime in the 1990s they changed to the cheap **** plastic ones that don't last! This wasn't a good place to save a few cents per gun.
armorer951,
Thanks for the reminder and the link. I have been meaning to replace the plastic ones in a couple of guns and this reminded me. Just ordered 3 from Numrich.
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Gunsmithing since 1961
Last edited by Alk8944; 01-04-2017 at 01:20 AM.
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