How can I change a prop's weight?

[Zignd]

As the tittle says, how can I change a prop's weight? I'm making a sent, by the model I'm using is too heavy, so I'd like to change it's weight.

[Rubat]

[url]http://wiki.garrysmod.com/page/PhysObj/SetMass[/url]

[DevulTj]

I'm not a hundred percent sure, but I think it's SetMass(number)?

[B]edit:[/B] Ninja'd