Black steel, 30-round magazine for the Ruger® AR-556® rifle and pistol and the SR-556 Takedown® rifle chambered in 300 AAC Blackout. '300 AAC Blackout' is lasered on the side of the magazine.  

30-round magazines are not available in all states and locales. Ruger cannot bill to or ship 30-round magazines to the following states and cities: California, Colorado, Connecticut, Hawaii, Maryland, Massachusetts, New Jersey, New York, Vermont, 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, and Evanston. If you live in any of these locations, DO NOT ORDER THIS MAGAZINE.  
Genuine Ruger® Factory Accessory