Expect 100% reliable!

I own an American resistance AR9 pistol equipped with a fostech Gen 2 binary trigger. Because in the past I had experienced only limited reliability an aftermarket magazines for Glock I decided to go with this Glock 33-round magazine. I am delighted that I did. After several hundred rounds I can tell you I have experienced no failures. I have also run multiple brands of ammunition and grain. Don't try to save money just to be disappointed. Pay the little extra and get something that is going to work all the time. I originally purchased two but now after months I'm running time with no failures I am going to order two more end. Yes, I recommend these magazines.