Interesting. Actually, I think see the glint of a bolt-on neck plate too. So you may be right. It's backup gear, so maybe a standard or some other model he has laying around for practice. I wonder what amp he's using. Sounds pretty good to me!
Here's the back of one of the silverbursts I used to have:
if i was to take a guess its a silverburst les paul classic. i think they came out around 2010. it looks pretty silver to me compared to the green of the "real ones"