Tonight while fitting a new forearm to my 30 carbine stub project I discovered the new forearm I had bought at auction had metal in the hole for the forearm screw. The last one I did was just plain wood. I would think the metal would be more desired, but I think this may have been an older forearm, it is the kind that is tapered up toward the barrel and not the flaired down type. Not really important, just a curiosity. Anyone else have ones with metal inserts? Larry