Mec-Gar Pistol Magazine 1911 9mm 9-Round .45 ACP 10 Rounds Nickel 10RD. That's because Mec-Gar designed these 1911 Pistol Magazines with a heat-treated carbon steel tube with a steel follower for maximum ruggedness. Also the Mec-Gar USA Inc 1911 Magazine uses a higher tensile music wire spring to ensure proper feeding every time and the welded butt-plate will never fail you in the field. Find the Mec-Gar USA Inc 1911 Pistol Magazine that fits your firearm and preferences to stay armed with the best in the business. Specifications for Mec-Gar 1911 9mm 10 Rounds Pistol Magazine: Manufacturer: Mec-Gar Gun Make: 1911 Platform Gun Model: Colt 1911 .45 ACP 1911 Caliber: .45 ACP Magazine Capacity: 10 Round Color: Nickel Finish: Nickel Additional Features: NOT COMPATIBLE WITH MAGAZINE GUIDES ON PISTOLS Condition: New Fabric/Material: Heat treated stamped steel Steel Package Contents: Mec-Gar 1911 9mm 10 Rounds Pistol Magazine What firearm models does the manufacturer say Mec-Gar 1911 9mm 10 Rounds Pistol Magazine is compatible with? The manufacturer suggests that Mec-Gar 1911 9mm 10 Rounds Pistol Magazine is compatible with 1911 Colt 1911 .45 ACPMec-Gar CG4510N 1911 45 Automatic Colt Pistol ACP 10 Round Nickel Finish