Well I finally finished drilling out the holes for the side plate, but now I think I might have countersunk the holes too much. I test fitted the rivets and all the rivets sit a little deeper than the surface of the plate. Is this bad? Will this stop the rivets from fitting tightly? Should I find washers to bring the rivets level with the plate? Im speaking of rivets that sit on the inside of the weapon that fasten the plate to the bottom plate.