User blog comment:IamJakuhoRaikoben/Chapter 518: Master Enchant, Review./@comment-4829046-20170124025238/@comment-7418318-20170124142753

At first I thought it can't be the Giant Armour, since it had those ugly over-sized gauntlets, but upon checking, that turned out to be only the case for the anime.

This could really be from the Giant Armour as it was depicted in the manga http://www.mangapanda.com/fairy-tail/44/20, if the little bit of pelt belongs to the bracer.