I was able to shave off metal with a knife.. I bought a replacement and he is sending it and an extra, I'll see if they are harder, I'm also going to play around with an old file and some 1095 carbon steel to see how hard they are and if either would be good to make one from. Got a polished factory one in it now and after 20 shots it's just polished even better..
He didn't send it damaged, if that's what you mean, but at least this one is really soft, he doesn't heat treat them but claims they are hard.. If the replacements are as soft as this one I will see if I can find someone who have harden them if it's worth it $$$.Maybe I can get the 1095 to harden up, that and I'll try an old small file and make one.. All in all this trigger group is very nice, going to take it back out and scotch brite it..