I traded my M1A for a FAL and I have some leftover goodies.
I have 5 20 round GI mags
1 marked "W", 1 marked "UHC",1 marked "OM", and 2 marked "BRW S-1".
They are all in good shape, some use and wear marks (mostly from inserting into rifle) and I would rate them at 90%.These were part of my SHTF long term supply so they are the best ones I had.
$35 shipped to you, $150 shipped if you want all 5.(Obviously not available if you live in one of those foreign countries CA,MA, or HI)
I also have a Wilderness Giles Tactical Sling for M1A synthetic stock. $25 shipped.
I can send pics via e-mail if you wanna see'em.