I was cruising along on GB going through my daily checking. Generally I only expand on promising looking deals, configurations I’ve been on the hunt for, or things that are heinous. Here we have the latter. About halfway through the pack of lies in their description something they said caught my attention. Upgraded sling mount model? As a sanity check, are there any documented examples of factory sling mounts?
https://www.gunbroker.com/item/968083776