Springfield Armory Hellcat Stainless 9mm Luger Handgun Magazine - 15 Rounds - The Springfield Armory Hellcat Magazine provides an increased 15-round capacity. With 2 extra rounds, you can extend your time at the range. And with the stainless steel extension, you'll have an extended gripping area with a finish and pattern that matches the Adaptive Grip Texture of the Hellcat's frame.