Auto Ordnance 1911 Magazine 45ACP 7RD Blue. Specifications for Auto Ordnance 1911 Magazine 45ACP: Manufacturer: Auto Ordnance Gun Make: Auto-Ordnance Gun Model: 1911 Caliber: .45 ACP Magazine Capacity: 7 Round Color: Blued Condition: New Fabric/Material: Steel Package Contents: Auto Ordnance 1911 Magazine 45ACP What firearm models does the manufacturer say Auto Ordnance 1911 Magazine 45ACP is compatible with? The manufacturer suggests that Auto Ordnance 1911 Magazine 45ACP is compatible with 1911Auto Ordnance G21B: 1911 Magazine 45ACP 7RD Blue