The MagPump MP5/SP5 loader takes the thumb work out of stuffing 9mm MP5 pattern magazines. Drop rounds into the hopper in any orientation, work the lever, and the machine orients and seats each cartridge for you. Thirty round magazines fill in well under a minute without the sore thumbs or worn feed lips that come from hand loading against a stiff spring.It mounts to a bench for stability, and anyone running an SP5, an MP5 clone, or a rental line knows exactly how much range time thumb loading eats. For owners who shoot volume through classes, competition, or suppressed range days, the loader pays for itself in session time alone.