The traditional way to load low and midcaps was by using either a pistol or mag shaped speedloader or if you could get it last longer than one or two mags was the electric speedloader, those days have gone new in to stock from CCCP is their Cyclone speedloader.
Out of the box it will only load M4/16 AEG mags, we will very shortly also have adapters in stock for MP5, AK and ASG EVO Scorpion.
Its very simple and easy to use simply open the cover pour in approx. 1500 bbs close the cover, turn the loader over pop out the winding handle, clip the mag in place and wind the handle till it stops, mag is done.