Planet Eclipse CS2/CS3/170R/180R BS Ball Sensor Lightpipe Sticker

The Planet Eclipse CS2, CS3, 170R, and 180R BS Ball Sensor Lightpipe Sticker isn't a sensor itself but a light-guiding film that makes the built-in breech sensor's status (ball present/absent) visually clear, shining brightly through a small window to confirm the marker detects a paintball in the breech.

Part #SPA803035A000