Their is no skeletal meshes for developers that use Unreal Engine.

Why do you need a skeleton for a weapon?

why is that? 

I need it to display the weapon to on the character it only takes skeletal meshes not static meshes

You can attach objects to bones, I've made characters that are compatible with Unreal. If you can't find a game assets or a way to do things, find an alternative.

In unreal engine it takes Skeletal meshes to display it when it is running I believe don't quote me on it but that is how I've always done it. 

Yea I got them. just the weapons is all. Just through I let you know