Chris, what he said depending on the handgun, the firing pin, hammer and ?[forget now, 10 yrs ago] could fail. What surprised me was a "shop" newsletter that said what guns were not to be dry fired. S&W was advised against dry firing heavily. I questioned him, and asked why? What is so secret? He let me look at the info but not to take it home to make a copy.
Basicly we, the consumer are kept in the dark.
He did give me the "light" firing pin/trigger spring for the Glock 17 for my daughter. She has small hands. He said I couldn't buy it. Again I asked why, it isn't illegal. There are just some things the average guy can't get. Glock even has a modified firing pin for underwater use, not available to us.