Two blued steel, 17-round, 9 x 19mm caliber magazine. 17-round magazines are not available in all states and locales; 10-round magazines are available where required to meet state and local regulations limiting magazine capacity. Ruger cannot bill to or ship 17-round magazines to the following states and cities: California, Colorado, Connecticut, Hawaii, Maryland, Massachusetts, New Jersey, New York, Washington, DC. ILLINOIS Restrictions: Aurora, Cicero, Skokie, Chicago, North Chicago, Chicago Heights, Cook County, Buffalo Grove, Dolton, Hazel Crest, Highland Park, Homewood, Melrose Park, Oak Park, Evanston, and Franklin Park. If you live in any of these locations, DO NOT ORDER THIS MAGAZINE.