The magazine is compatible with your fmk 9c1 gen1 and gen2.Caliber: 9mm LugerCapacity: 10rdFinish: BlackModel: 9C1Material: SteelType: DetachableModel Fit: 9C1 Gen2Brand Fit: FMKCapacity: 10
The magazine is compatible with your fmk 9c1 gen1/gen2.Caliber: 9mm LugerCapacity: 14rdFinish: BlackModel: 9C1Material: SteelType: High CapacityModel Fit: 9C1 Gen2Brand Fit: FMKCapacity: 14