I was looking to purchase a Rock Island double stack 10mm, but they were hard to find at a reasonable price. I finally found one readily available on Diamond Ammunition for a great deal! Their cost for standard 2nd day air shipping is even better! I received updates on the status of my order, and within a week I had my gun. My purchase from Diamond Ammunition was one of the smoothest transactions I have ever had with a dealer. I'm already looking to make another.