The Strike Industries Extended Magazine Plate for HK VP9 was designed to provide smoother magazine reloading through a slow drag / no snag design while maintaining maximum magazine capacity. The Extended Magazine Plate (EMP) adds plus 5 9mm rounds to OEM Heckler & Koch magazines. Following the success of our EMP systems for pistols, the form factor and unique geometric design gives a unified and aggressive aesthetic look to your HK VP9. Included is a steel locking plate which adds extra locking security. Give your HK pistol the extra rounds it deserves with the Strike Industries Extended Magazine Plate (EMP) for Heckler & Koch VP9.