That's the gassing up of the Shells covered off, but how do you actually fill it with BB's?Fortunately, that's very easy! All you'll need is a ZO Wadding Paper Pack for CAM870 (x100). Simply push one of circular Wadding Papers down into the bottom of the Smart Shell, then fill the Shell with BB's and then top it off with another Wadding Paper disc, creating a 'Wadding & BB Sandwich' as it were.That's it, now you're ready to rock !!!