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Originally Posted by 18DAI
Does anyone know when the flash chromed hammer and triggers on the 4506-1 ended? I am guessing around 1996/1997.
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At S&W, things don't "end".
They "transition" as new parts show up and old parts get used up. (And if someone finds a box full of old parts, then they "magically" reappear, until those get used up.
)
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I have come across several 4506-1s with post 1995 serial Prefixes that have the flash chromed parts. And others that have blued forged hammers and triggers.
Do the flash chromed hammers and triggers have less than great trigger pulls? Can an action job be done on a gun with flash chromed parts? Or does removing the surface finish cause problems? Thanks! Regards 18DAI
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"Blue" forged and "silver" flash chromed parts can have a rough machined surface and can result in a "gritty" trigger pull.
Later MIM parts tend to be much smoother and consequently result in a smoother trigger pull.
It is primarily a rough area on the hammer (upon which the sear drags during the double action pull) that causes most of the aforementioned "gritty" pull.
This area can be smoothed with no ill effects to the parts involved.
Another problem can be the metal mainspring cup which gets rubbed on by the spring.
Replacing it with the plastic cup is the quickest solution to that problem.
HTH
John