9mm and .38 Super complete magazines for 1911 and 2011 pistols are the consumable foundation of a reliable Open, Limited, or Single Stack stage plan. Competition-ready 126mm and 140mm 2011 tubes support the capacity demands of USPSA Open and Limited, while single-stack 9mm 1911 magazines keep dedicated Single Stack pistols fed without compromising presentation. MBX, SVI, Grams, Dawson Precision, and Chip McCormick provide proven magazine options spanning high-capacity double-stack systems and classic single-stack formats. Look for the tube length, follower design, spring rate, feed-lip geometry, and base-pad configuration that match your cartridge and reload plan. .38 Super and 9mm Open loads can place different demands on feed setup, and a magazine that runs in one 2011 grip may require fitting or tuning in another. Confirm the pistol's frame and grip system, caliber, magazine catch position, and division length limit before ordering. Match the complete magazine to compatible base pads, magwell clearance, and your required capacity, then test it with the exact ammunition used in the match. Mark, rotate, and maintain magazine bodies as a working system, not a loose pile of spares. Fast same-day shipping on most orders at Shooters Connection.