A. Designed to fit any 380, 9 mm or .45 ACP single and double-stack pistol magazine, the ExtraCarry 2.0 Universal Concealed Carry Mag Pouch provides a deep-concealment option that allows you to carry a reload in your pocket. Carbon-fiber and reinforced-nylon construction minimizes weight, while its patented locking mechanism securely anchors the pouch to your pants pocket. The exposed clip resembles a pocketknife, and the bottom of the pouch is enclosed to prevent rounds from being dislodged. extracarry.com