Heckler & Koch Pistol Magazine USP40 .40 S&W 13 Round Black 13. Specifications for Heckler & Koch USP40 .40 S&W 13 Round Pistol Magazine: Manufacturer: Heckler & Koch Gun Make: Heckler & Koch Gun Model: Heckler & Koch USP .40 S&W Caliber: .40 S&W Magazine Capacity: 13 Round Color: Black Quantity: 1 Fabric/Material: Stainless Steel Package Contents: Heckler & Koch USP40 .40 S&W 13 Round Pistol Magazine What firearm models does the manufacturer say Heckler & Koch USP40 .40 S&W 13 Round Pistol Magazine is compatible with? The manufacturer suggests that Heckler & Koch USP40 .40 S&W 13 Round Pistol Magazine is compatible with Heckler & Koch USP .40 S&WHeckler & Koch 50248608: Pistol Magazine USP40 .40 S&W 13 Round Black 13