Budsgunshop.com has 17 round g17 mags for $21.56 apiece plus shipping.

NatchezSS.com will beat that, as will (ack) Botach and Calssportingarmory.com. Plan on $18 or so for new ones, and as low as $7 for used ones.

Check out centerfiresystems.com. I got cheap Korean mags there. Wish I knew them earlier. Less than $8 for g17. But you'd have to do bit of deburring and they work as well as eom parts, just as reliable.

I think the plastic was hot when they fused it to the metal frame, so it oozed out on a couple of holes inside the mag, preventing smooth slide of the cartridges. Just take them apart, scrape them off with something like a small chisel. Worth doing if you're going to get a bunch of them.

thanks guys for the help