ATLAS GUNWORKS PREMIUM COMPETITION 9MM LUGER HANDGUN MAGAZINE Atlas Gunworks Premium 2011 Magazines are available in a host of colors and configurations. We recommend premium magazines for shooters looking for high performance, good looks, or both. From competition to carry, we have you covered with the best magazine for most modular 1911 double stack and 2011 style pistols, including Staccato* and Springfield Prodigy. FEATURES Caliber: 9mm Capacity: 23 rounds Tube: 140mm Stainless Steel Follower: Atlas competition follower Spring: + 18% Basepad: Anodized aluminum, adds 1 round, toolless Backed by the Atlas Magazine Mfg: Atlas Gunworks