How to Unlock the Legendary Reactor Gravitar Class Mod

Reactor is a Gravitar Class Mod for the Vault Hunter Harlowe.

Her Reactor Class Mod makes her gain Reactor stacks:

Whenever Harlowe Entangles an Enemy, she gains a Reactor Stack. For every Stack, she gains +2% Movement Speed. When she gains 10 Stacks, she also gains +20% Gun Damage, +20% Fire Rate, +20% Reload Speed, and +20% Status Effect Damage for 12 seconds, and loses all Stacks once the Duration ends.

Thanks to Imortilize for providing the information and check out all Harlowe Class Mods here!

Unlock Location + Farm Method:

• Acquired all 3 Vault Fragments in the Fadefields and unlocked the Arch of Inceptus Vault.
• Defeat Primordial Guardian Inceptus who can drop Reactor.
• Farm until Reactor drops.

Nearest Fast Travel

• Zadra's Backup Plan (Safehouse)