Most often found on M5 Scout and M4 Interceptor ships, these shields tend to be able to stand up to only the lightest of weapons fire. These are produced at the Light Shield Production Complex.

• 1 MJ shields are the lightest shields available and are usually found on M Scout ships.
• 5 MJ shields are common among M4 Interceptor ships and the heaviest M5 Scout ships.

Medium Shields are most often found on M3 Fighter and M6 Corvette military ships, and most non-military ships; although occasionally also on M4 Interceptor ships too. These are produced at the Medium Shield Production Complex.

• 25 MJ shields are widespread among TP Personnel Transport, TS Transport, and M3 Fighter ships. They are also a featured strength of M4+ Heavy Interceptor ships.
• 200MJ shields are found on larger ships like the TL Large Transport and M6 Corvette. 200 MJ shields are heavy protection for civilian ships and lighter military vessels.

These are produced at the Heavy Shield Production Complex.

1GJ shields are primarily found on M7 Frigate and M7M Missile Frigate ships, these heavy shields are a balance between heavy protection and compact form. 2GJ shields are primarily found on M1 Carrier and M2 Destroyer ships. These heavy shields are currently the most protective units available to mobile units.