I can't see a custom playermodel's hands while in FP mode.

I’m trying to use a Mr. Meeseeks playermodel, but only in third person, or when viewed through a camera can I actually see it. In first person mode, it just shows Kleiner’s hands. How can I make it show the playermodel’s hands? It’s a bit distracting.

I’m not an expert with playermodels, but I think whoever made the model would have to create their own viewmodel hands.