There is always lively discussion on this and I'll probably get some push-back from some and thumbs up from others, but aftermarket mags like MecGar and ProMag have worked well for me in my Bersa Thunder and Ruger LCP. For any carry situation I defer to the factory mags. But for range (or other) use, the aftermarkets have never given me ONE single problem. And .... even if they did hiccup now and then at 1/2 the price of Bersa mags ($18+/-) I can live with them! Do what you think fits your need, IMO. I just bought 5 ProMag 10 rd mags for a Beretta 9mm pistol and, again, no issues with them and at $23 compared to Beretta factory mags at $35, I can live with them ... even IF they gave problems which they haven't! Am I the only person to use the non-OEM mags without issue? I hardly think so....OK to all that, where do you get extra mags?