Hide Weapon?

How can I replace a weapon model so it becomes invisible ? I'm playing on a server and when I shoot, the weapon sways upwards and I can't see my target which is fucking stupid. If I could make the weapon invisible I would be able to shoot all the time instead of waiting for the weapon (2 sec) to get into position again to see the target.

Figure it out, does this look like the help section?

viewmodel:SetColor(Color(0,0,0,alpha))

change alpha to a number 0-255
0 is completely invisible, 255 is completely visible

http://wiki.garrysmod.com/page/GM/PreDrawViewModel
fail