Tyrant CNC(R) Magazine Extension is designed for compatible Heckler & Koch VP9 VP40 and P30 magazines. The extension adds 5 rounds of magazine capacity and features machined aluminum construction with a blue finish. Its extended base configuration provides additional capacity while maintaining compatibility with supported H&K pistol magazines.Key Features Designed for compatible Heckler & Koch VP9 VP40 and P30 magazines Adds 5 rounds of magazine capacity Compatible with 9mm and .40 S&W applications Machined aluminum construction Blue finishTyrant CNC(R) manufactures precision-machined firearm accessories and performance components in the United States. The company specializes in CNC-machined components designed for compatibility durability and functional performance. Tyrant CNC offers accessories for a variety of popular handgun and rifle platforms.