Do you have a rifle with the receptacles but are missing the swivel loops? I think my replacement loops came from New England Custom Guns, but I'm not sure. They are not a reliable fit in the receptacles in my rifles, but they can probably be made reliable with a little welding and filing. Correction: My insert and twist swivel loops came from Lyman Products, but they seem to be missing from their catalog. They cost $5.50 each a few years ago. I would call them and ask. Good luck.