This one's a home built 1911/.40 S&W using a Colt .38 Super frame, home brewed trigger, commander hammer milled to work with the Colt grip safety, Wilson sear, Fusion slide, Kart match barrel, Caspian extractor and ejector, Ed Brown match bushing, custom Colt grips, Novak sights, Wolf springs throughout. Firing pin is a used Rock Island item!! I built it and I like it.