Designed to utilize standard double stack 1911 magazines as well as the traditional polymer grip receiver and the top end of Girsan 1911 handguns (in 9mm 45ACP and 10mm) the Witness2311 is as versatile as it is revolutionary. The reliability of a Girsan 1911 now available with a much larger capacity and at a price point that everyone can afford there really is no downside to this new handgun. - Extended Beaver Tail - Accessory Rail - Polymer Grips - Ambidextrous safety Adjustable Rear Super Sight and Fiber Optic Front Sight 6 Model 3 Dot Sights and Optic Ready Models - High Capacity Double Stack Magazine