I have been scratching my head at this since it came up. I do not know why these high grade guns would have bushed firing pins. The example dave posted has hex shaped bushings and the dubray gun dean posted has square bushings. Both guns still have the normal retaining screws in the sides of the bolsters. Who knows if these are just filler screws on these particular guns vs. retaining the pins.
It would not be a major ordeal to convert the t/a hammer guns to bushed pins for the factory. I just cannot figure out functionally why it would be done.
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B. Dudley
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