I have a 11.5" PSA complete upper I purchased that has been stored away as I haven’t had time (or money) to finish the build. Ended up using the BCG for another build, but someday!
Does this look right? I checked my other upper’s I’ve bought and they seemed to interface properly, granted they’re different style hand guards. This seems as if someone just cranked down on the screws to have it lock in.
Yep. Looks ok. Those are the anti rotation screws. Same thing with gas blocks. If the barrel isnt pre-dimpled you crank down the screw to create one. Keeps it from moving then.