Multiple SetModels?

So im trying to make an entitiy spawn with a random of these two models, is this possible?

self:SetModel(“models/props_wasteland/rockgranite03b.mdl”);
self:SetModel(“models/props_wasteland/rockgranite03a.mdl”);

Yes. In the entity’s Initialize method, you can randomly select a model using math.random.

See example 2 on this page: