Well, hate to be the bearer of bad news, but this hammer does not function with the A&S trigger guard either. Same issue as with the polymer. I knew when I lined up the holes on the trigger guards and saw they were identical it wouldn't work, but attempted anyway. So either my hammer is out of spec, or the batch is, or they all are. I'll give him the benefit of the doubt, but it's frustrating to say the least. I'm going to try emailing him again and see what he says. I got no response last time.