Model 1911 to fire the powerful 45 ACP cartridge. We developed it to fire the 22 L.R. and, after extensive testing and research, determined that 85% of the original size was ideal for the smaller cartridge. Put one in your hands and we know that you'll agree. The grip is comfortable even in large hands and feels equally at home in smaller ones. The lightweight alloy construction is anything but light duty. Own a little piece of history today. And now with the addition of a polymer-framed version, you have more choices than ever.