I have had very good luck with Mec-Gar 10 round mags. The finish on these mags take a licking a keep on ticking. I've used my Mec-Gar mags more than my factory Para mags but the Mec-Gars still look brand new. The Mec-Gars have been extremly reliable, they use only highest quality music grade steel springs. AJAX sells them for around $17 each. Thats less than half the price of the Para Factory mags.