Out shooting today and had this happen. I only have 200 rounds through the gun, which was brought new last month. This is the second time this has happened. So, I tried my mag in the wife's gun, and had this weird double feed (wife's gun has the custom grips). In both instances the slide was locked back and I had to drop the mag to get the slide to move. Anyone have any thoughts? I did call SA and they are sending me a new mag.