Thanks Ray1970 for the Heads up on the New Sight I can put on my Sigma. The only ?? I have is will 1 of the Sure Sites fit on a Sigma since they only fit the M&P for S&W. They make them for Sig, Springfield and Glock as well. Y'all can go to their site if they interest U at SureSight , They look like a great site system for anyone, and since the Glock site worked out for your Sigma was really hoping 1 of Sure Sites Glock sights would work on mine.