User blog comment:B214/Question and Answers/@comment-80.117.202.203-20130626081836/@comment-1359322-20130626082530

Actually the form of the Boosted Gear differs in each media, in the Manga and Light Novel only the Dragon Gauntlet and Dragon Gauntlet form 2 appeared, while in the Anime, there are 3 forms.

The reason to why the Boosted Gear became the Dragon Gauntlet form is because of the Balance Breaker in Volume 2 changed it from Dragon Gauntlet form 2 to Dragon Gauntlet form 1.