Board Thread:Questions and Answers/@comment-2037710-20131106061354/@comment-202.55.45.248-20141213091312

Double Circular is a confirmed skill.GGO has depicted a merely slightly altered version of it,using the Kagemitsu G4 and FN Five-Seven,and the SAO Kirito overlay it simotaneously depicts confirms it's existence in SAO and possibly his application of it during then.