I have 4 of the old steel hi capacity Glock 17 mags. I got them "just in case". Ran one mag thru my Glock, ran fine with it, put them in the back of my safe and forgot all about them. Since I have been De-Glocked I no longer have the need for them.
$5.00 each, I will pay S&H. And you can put them away - "just in case"
Thanks for looking