SOLD***I have a modified (polished) hammer, trigger, and mainspring set from a mid 70's S&W model 28 for sale. $45 + postage.***SOLD thanks.
The sides of the hammer and trigger were lightly polished and the hammer spring was thinned as was the practice back in the day. The grooves on the trigger were polished down to make a smooth trigger. The work appears to have been well done. The hammer and trigger have all the pins, springs, and the cylinder hand installed
When I bought the pistol, I fired it several times. It had a light smooth action and worked fine with no issues or light primer hits, but I wanted the pistol returned back to factory condition so I put an unmodified hammer, trigger, and spring in it and I am selling the modified parts to someone that may want a "drop in trigger job" and does not want to modify their original parts.
Although these parts worked fine in my gun, as always, I would suggest that you have a competent smith install these parts and check for function and safety before using.