The Springfield Armory® Hellcat® 9mm 10-Round Magazine with Pinky Extension is a Springfield factory OEM pistol magazine, designed to deliver long-lasting field performance and smooth operation in concealed carry and target shooting applications. Featuring a corrosion-resistant stainless steel tube, this factory magazine comes equipped with a high-tensile steel wire spring and injection-molded polymer follower for smooth, reliable feeding, while the polymer pinky extension utilizes the same Adaptive Grip Texture as your Hellcat pistol’s frame to ensure a comfortable, full-hand grip for added stability and control. Plus, this magazine features numbered witness holes for speedy, on-the-fly round counts for added reliability.