Can't see CSS weapons

I have this “bug” since i joined a DarkRP server ,i reinstalled everything but still can’t see the first person model…

Anyone know how to fix it please post the reply here or just add me on steam!Thank you!

Steam url : http://steamcommunity.com/profiles/76561198070239386/

You own CS:GO. Not CSS.

Or are you another one of those people who uses those CSS textures?