Kci Usa Inc Magazine 1911 .45 8 Round Black Steel. Constructed of steel with an Electroplated finish these magazines feature a high-carbon steel spring and precision-formed feed lips to provide dependable feeding. Specifications for Kci Usa Inc Magazine 1911 .45 8 Round Black Steel: Manufacturer: KCI USA Gun Make: Glock Gun Model: 1911 5in .45 ACP Caliber: .45 ACP Magazine Capacity: 8 Round Color: Black Finish: Matte Condition: New Fabric/Material: Steel Dimensions: 0.80 X 2.50 X 4.35 in Height: 0.8 in Package Contents: Kci Usa Inc Magazine 1911 .45 8 Round Black Steel What firearm models does the manufacturer say Kci Usa Inc Magazine 1911 .45 8 Round Black Steel is compatible with? The manufacturer says that Kci Usa Inc Magazine 1911 .45 8 Round Black Steel is compatible with 1911 5in .45 ACP