Colt Defense O4940XE: The Colt Combat Commander affords enthusiasts the ability to concealed-carry a real 1911 platform pistol comfortably. With a shorter profile than a traditional full-size Government Model, the Combat Commander offers the Dual Spring Recoil System and custom Colt G10 grips, among other enhancements. This pistol also features an undercut trigger guard and upswept beavertail, allowing shooters a higher grip for enhanced comfort and accuracy.This firearm is the 45 ACP model.