Rock Island Armory 51615: The M 1911 GI standard is a great representation of the original US GI combat issue 1911. It's chambered in 9mm and built with our exacting engineering standards. Fixed, low profile sights and traditional smooth slim design are perfect for quick pull holster use. A durable parkerized finish gives it a tough, smooth non-reflective surface. Smooth wood grips offer comfort in both feel and design. The 5" barrel offers a balanced weight to assist with the accuracy and recoil that made the original 1911 design famous. True to all Rock Island 1911s, the GI Standard comes with a crisp factory 4- to 6-pound trigger to make it a great experience right out of the box.