anyone know of a source for barrel bands (for sling swivels) in stainless?

Gentry does not offer them in stainless any more

glad I got mine when I did. You could plate blue ones with chrome over a bead blasted finish and it would be close.

Edit: as soon as I wrote this I remebered the ruger uses them on the tropical series. One of the Ruger guys here can probably point you as to how to get one.

more specific......I need a .870 diameter