Here we have the bb pump. Made to reload fast and accurate your mid-caps. Here we can, with the display and the button… set the number of bb’s. Very simple. Then we put our mag on the output of the pump… we push, very easy. We see the display counting down… and within no-time you have a magazine with exactly the number of bb’s you’re set. That is the true power, knowing how much are in it… and that you have the same number of bb’s every time. Also there is the possibility to quickly unload when you came back from the field… and ready to pump again. Then you have reload fast, accurate and reliable.