I got burned in a gun deal not long ago. The used Glock 17 I purchased had one of these famous trigger jobs done to it and the previous owner didn't know what he was doing. The first time I shot it, I barely touched the trigger and it went off. WAY too light. I took it apart to check it out and found all the "polishing" that had been done. I wasn't told that there had been any work done to it.
I had to replace all the parts that had been "polished" before it would work to my satisfaction.
Two morals of the story.
Don't mess with it if you don't know what you are doing! Buyer Beware!
“Neither cold, nor darkness will deter good people from hastening to the dreadful place to quench the flame. They do it not for the sake of reward or fame; but they have a reward in themselves, and they love one another.”