Model 66 three inch Hammer

[Leatherbark]

Hello all. I traded recently for a 66 3 inch round butt. The hammer has been bobbed and I would like to replace it. It is the type with the firing pin in the hammer. Will any old "K" frame hammer interchange?. Did the 66 ever have a case hardened hammer? Or were all of them Stainless? Thanks...........Bob

 

[Leatherbark]

Hello all. I traded recently for a 66 3 inch round butt. The hammer has been bobbed and I would like to replace it. It is the type with the firing pin in the hammer. Will any old "K" frame hammer interchange?. Did the 66 ever have a case hardened hammer? Or were all of them Stainless? Thanks...........Bob

 

[john traveler]

Yes, any of the post WWII "short action" K frame hammers will fit.

Only the very earliest product M66 hammers and triggers were ever stainless steel. All subsequent production has been flash chromed carbon steel.

 

[JohnK]

I own two 3" Model 66's. Both are 66-4's.

Both have case hardened hammers, and triggers.

 

[dfariswheel]

As above, the VERY early Model 66 had true stainless steel hammers and triggers.
S&W wasn't satisfied with how they wore, so they quickly changed to carbon steel with a flash plated coating of hard chrome to match the stainless gun.
Later models had carbon steel with a color case hardened finish then they switched to MIM parts.

What your 66 would have been fitted with depends on the dash version.,
Up to the 66-3 they were plated.
Any hammer from a "K" frame revolver of the generation or "dash" version you have can be used, but note that some fitting may be required.

Here's my 66-3 version.

 

[Leatherbark]

I dont have it with me right now, but I believe it's a 66-4. It has a pinned black blade front sight post. Is that style factory? or aftermarket?........................Bob

 

[357larry]

Is your 66-4 a double action only? I have a 3 inch 66-4 with cashardened hammer and trigger and the hammer is bobbed, but mine is double action only.

 

[socal s&w]

That's a mighty large hammer at 3"!