Blender to GMod 13

So I’m new here (and probably posting in the wrong spot). For this I apologize.

So a couple days ago, I found some models which I wanted to add to my Garry’s Mod. So I’ve imported to models into the most recent Blender. The models doing fine, but here’s where I have the brain fart. Note that I don’t know much what I’m doing on blender(I learn something every so often, then forget it), but I just don’t know how to move the model into Garry’s mod now.

I haven’t done THAT much research on what to do, but what I have found was very vague. I have the Source .smd download needed, but where do I go from there.

Sorry for the post if it is in any way confusing.