User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-24173056-20141122062809/@comment-24502975-20141123004808

They aren't necessarily a part of BG. They just appeared as a result of Juggernaut Drive, and up until now Ise was only capable of using them in tandem with Balance Breaker. The wings of CCQ are a different story.

Of course, I may very well be wrong, although I doubt it, so until v19 is translated or someone can provide extra info neither one of us can say for absolute certain.