FAB Defense 9mm/MP5 Magazine Couplers Black. This FAB Defense weapon accessory improves operational efficiency and easy to install. In addition this weapon accessory from FAB Defense has durable and lightweight polymer construction that is resistant to extreme operating conditions. Specifications for FAB Defense Polymer Magazine Couplers for MP5: Manufacturer: FAB Defense Gun Model: Heckler & Koch MP5 Color: Black Fabric/Material: Polymer Quantity: 1 Gun Make: Heckler & Koch Features of FAB Defense Polymer Magazine Couplers for MP5: Keeps magazine parallel to the gun for rapid magazine loading No need to carry magazine in pocket Safe and secure carry method for unloaded gun with a magazine at hand Durable and lightweight fiberglass reinforced polymer construction Tightly secured into the mag-well keeps it clean and easy to operate Package Contents: FAB Defense Polymer Magazine Couplers for MP5 What firearm models does the manufacturer say FAB Defense Polymer Magazine Couplers for MP5 is compatible with? The manufacturer says that FAB Defense Polymer Magazine Couplers for MP5 is compatible with Heckler & Koch MP5FAB Defense Polymer Magazine Couplers for MP5 Black -TAC-04