MG42 sling rings

[Warren]

Most 42's I have ever seen have one ring or none at all, just the hole in the jacket where the ring should have been.
Also, there is not enough meat to drill two holes in the jacket on the flat where the one hole is located for two holes without them eventually breaking through. Why would you need a second ring anyhow?? You'd have two sling snap rings jammed up to each other