Bill Geissele is a great guy. About 10 years ago I called with a question about one of his triggers he answered the phone himself. He answered my question then we spent about an hour talking about triggers and guns. The wealth of knowledge that man posses about manufacturing, tooling and firearms is truly impressive. He earned a customer for life. Every AR I own has either one of his triggers in it or one of the ones from his wife's company ALG. The ALG QMS is the best bang for your buck in AR triggers IMO.