Alright, thanks guys.
The block itself didn't look like it had moved at all, and the markings on the barrel from the set screws lined up perfectly with the holes in the gas block, but I applied some blue loctite and re-torqued them anyway. Hopefully that does the trick.
A few of the handguard screws were definitely loose, and the ones that weren't probably would have been after a few more rounds. Gonna loctite them and torque them down as well.
Did you guys notice any other screws in particular that needed some attention?
Cheers,
Kris