User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-66.49.189.196-20111207233345/@comment-84.13.49.180-20111231190923

G-swords are 2 meters of solid steel, that is hundreds of kilos. The bone ones may be lighter though, but monster hunter could be on a planet the size of the moon. This would also explain why you can jump of hundred meter cliffs and be fine.