SWEP not in model's hands

Hello.

I have recently downloaded some SWEPs from garrysmod.org and I can use them all fine, but when I look at my model through a camera or in third-person, the SWEP seems to be coming from his waist or groin area. Some are in the hands of the model, but very few.

Is there some simple solution to this that I am missing (because I have looked high and low for the solution), or is this unfixable?

Any help would be very appreciated. Thank you!

–Greg

It seems the Day of Defeat ones are not in the hands at all. But most of the Counter-Strike Source ones are. And there was a tactical weapons pack by -[SB]- Spy where some of the guns were in the models hands too, but most were not.