Sword Art Online Alternative - Gun Gale Online (ソードアート・オンライン オルタナティブ ガンゲイル・オンライン, Sōdo Āto Onrain Orutanatibu Gangeiru Onrain?) is a manga adaptation of Sword Art Online Alternative: Gun Gale Online light novel, an official spin-off of the Sword Art Online series by Sigsawa Keiichi that is supervised by Kawahara Reki. This ongoing manga is illustrated by Tamori Tadadi and is published bimonthly as part of the Dengeki Maoh magazine.