I have 20 USA Brand new never fired pre-ban mags.

One or two have been inserted in a lower I had but never fired or rounds placed in them.
These are in the original packaging and in the original shipping box.
I bought these in the 90's thinking the ban would last forever.

There are no dates that I can see.
$25 each, preference goes to the ban states

Edit: Forgot a few details.
Payment is US Postal Money Order Only,
Buyer pays actual USPS shipping.
Tell how many you want and I'll get you the ship quote.