Nope There legal in that state. I see no restrictions on rugers web sight for 30 round AR-mag
http://shopruger.com/SR556-and-SR556E-30-Round-w_-Window-18061/productinfo/18061/
Ruger® cannot bill to or ship 30-round magazines to the following states and cities: California Colorado Connecticut New York Massachusetts Maryland New Jersey Aurora, IL Chicago, IL Cicero, IL Franklin Park, IL Oak Park, IL Denver, CO South Bend, IN Washington DC If you live in any of these locations, DO NOT ORDER THIS MAGAZINE.
