The Wilson Combat® .45 ACP 7-Round Magazine is made of .027" aircraft-grade, certified 17-7 pH, heat-treated stainless steel for maximum durability and service life. This magazine is designed to fit the Wilson 1911 .45 ACP (Automatic Colt Pistol) and features a 7-round capacity. Dimensional tolerances are held close so that the magazine won't drop free from the pistol. Removable .350" plastic base pad allows for easy maintenance and versatility with different bas options. Stainless steel finish. Detachable. Wilson Combat .45 ACP 7-Round Magazine - Shooting Supplies And Accessories at Academy Sports