Magnet of the US Air Force Weapons School Bullseye that is on most of their patches. Designed to fits one small 6mm x 3mm magnet. Base layer is a dark grey. Red on patch is painted with red acrylic paint.
G-Code has 2 layer pauses:
3.8mm: color change to yellow, add magnet at this time
4.6mm: color change to black
The author hasn't provided the model origin yet.