For the armor shield with the same name, see Principal (Armor Shield).
Principal is a legendary enhancement in Borderlands 4 manufactured by Hyperion. It is obtained randomly from any suitable loot source.
Fixed Weapon Bonuses[]
- Shock Guard – Weapons with Hyperion-licensed parts trigger a shock nova when deployed, with an 8-second cooldown.
- Stim Coverter – Weapons with Hyperion-licensed parts regenerate up to 10% Health when the Gun Shield is hit.
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