User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-6680436-20130922024958/@comment-6050823-20130922114120

Actually, Aruserutasu doesn't have armor but, some of its parts are needed to make Generu's set. It weapons are pretty decent but, they have bad affinity and as they upgrade their affinity increases along with sharpness and power. After one or two upgrades, you need Generu parts and you gain the water element.