Mount Point Animation and Mounted Object

I've got a box I am mounting to one of the characters hands. Its scaled horribly, and it's encompassing both hands. I plan on fixing this, but I want it moving before I do. It doesn't animate with the mount point, its stationary. Is there something I could be missing, or does it need to be properly scaled?

edit: When forcing the player into third person, the box doesn't appear at all, however when I switch to an example model it does. Any ideas?