Springfield Armory 1911 Magazine .45 ACP 6 Round Steel Blued Finish 6RD. 45 ACP 6 Round Magazine: Manufacturer: Springfield Armory Gun Make: Springfield Armory Caliber: .45 ACP Magazine Capacity: 6 Round Condition: New Package Contents: Springfield Armory 1911 .45 ACP 6 Round Magazine What firearm models does the manufacturer say Springfield Armory 1911 .45 ACP 6 Round Magazine is compatible with? The manufacturer says that Springfield Armory 1911 .45 ACP 6 Round Magazine is compatible with Springfield Armory 1911 Range Officer Compact Springfield Armory 1911Springfield Armory PI4723 1911 Officer Compact 45 ACP 6rd Steel Blued