From The Manufacturer/Wikipedia/People Smarter Than Us:
Designed on the 1911 platform with a wide-body frame. Ambidextrous safety. 3.2 inch flared bull barrel with blued finish. Carbon steel slide with front and rear serrations. Lowered and flared ejection port. Combat sights dovetailed into the slide. Dual recoil-spring system. extended slide catch. Beavertail grip safety. Skeletonized aluminum trigger. Lightweight alloy frame. Ultra-thin polymer grip panel.