Jmstr, I've used some of them. I have one of their commander style hammers in a 1911 that I'm not sure how many years it's been in there but I believe it was the first year they came out in the Brownells catalogue. 5 or 6 anyway. It still has the same 4# pull that was the result of the trigger job when I built that pistol. I've installed their parts on some customer guns as well over the past few years and I've never had one brought back with a complaint. They seem to make quality parts but somehow do it less expensively than Wilson or some of the others. George