Spiritus Systems Type Expander Wings This item was sampled from the real product, with attention to detail and materials, and reproduced in JGSDF camouflage. This is a personal project, and production after it sells out is undecided, so please consider purchasing early. The Expander Wings are an expansion panel that attaches to the Velcro on the back of a rig. By threading the side ladder straps through the webbing, a secure and stable connection is possible. In addition, the bungee cords can hold radios and rifle magazines, increasing portability. *Radios and magazines in the photos are not included.