JPK, the action has been cleaned, non adjustable gas block, buffer spring has been swapped with functioning carbine, trigger resets, bolt locks back.
My buddy(not the owner)thinks the chamber is too tight. He keeps talking the R word but I told him at that point it becomes unreturnable/his rifle.
10mmillie, gas tube was replaced as well.
Thanks for the ideas folks.
As far as seeing it run, I was informed that was another one; he has three or four. Poor him, at this point. I vote send it back.