Posted by David Williamson on October 23, 2017, 6:21 am, in reply to "Missing screw in barrel"
Bill if that is the same hole I am thinking you are referring to it is just a threaded hole that had a short screw in it. The metal part that the screw is in is actually an early reinforcing rib and is attached to the for-end loop. It is almost like a set screw and is flush with the rib. It does not hold anything and I would not worry about it.