Need some help here. The top gun is a 66-1, the bottom is a 66-4.
Note the difference in the triggers and hammers. The bottom (66-4) to me is case hardened, yes?
The top (66-1) is what???
I would think the early one would be the case hardened unless, something was changed which I do not want to think about,
Any advice or vast knowledge appreciated
Note the difference in the triggers and hammers. The bottom (66-4) to me is case hardened, yes?
The top (66-1) is what???


Any advice or vast knowledge appreciated


