This is an adapter for using Nerf Rival magazines as speedloaders for the X-Shot Chaos Orbit. It's designed to work with lanceamillion's printable magazine (https://www.thingiverse.com/thing:4061251), but it might also work with others. Glue the adapter over the loading port on the back of the blaster, then press the magazine against it. Instant reload! It works surprisingly well.