Heckler & Koch Pistol Magazine SP5/SP5K 9mm 10 Rounds Black 10. Mags hold 10 rounds only so this is ideal for restricted states or for those that want the mag to have a low profile. Specifications for Heckler & Koch SP5/SP5K 9mm 10 Round Pistol Magazine: Manufacturer: Heckler & Koch Color: Black Fabric/Material: Steel Magazine Capacity: 10 Round Caliber: 9mm Luger Gun Make: Heckler & Koch Gun Model: Heckler & Koch SP5K Quantity: 1 Package Contents: Heckler & Koch SP5/SP5K 9mm 10 Round Pistol Magazine The Heckler & Koch SP5K 9mm Magazine is a quality addition to the Heckler & Koch lineup. For more great deals on Rifle Magazines by Heckler & Koch please browse our Heckler & Koch Magazines page. What firearm models does the manufacturer say Heckler & Koch SP5/SP5K 9mm 10 Round Pistol Magazine is compatible with? The manufacturer says that Heckler & Koch SP5/SP5K 9mm 10 Round Pistol Magazine is compatible with Heckler & Koch SP5KHeckler & Koch 239257S: Pistol Magazine SP5/SP5K 9mm 10 Rounds Black 10