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Borderlands 4 Guide

How to Unlock the Legendary Oscar Mike Assault Rifle

Weapons
Legendary Loot
Updated on Sep 19, 2025
Sep 19, 2025

Overview

Oscar Mike is an Assault Rifle that can come in both Cryo or Kinetic forms. At a baseline, it deals an extra +50% Bonus Damage with the first half of its Magazine.

However, what makes it truly exciting is its under-barrel Space Laser effect, which deals a massive amount of damage within the designated radius.

borderlands 4 oscar mike assault rifle

How to Unlock

Unlock Location:

  • Progress into Carcadia Burns region.
  • Complete the Fault Finding side quest.
  • Doing so unlocks Genone, the boss that drops Oscar Mike.

borderlands 4 genone location

Farm Method:

  • Defeat Genone after completing the quest.
  • Return to his arena via the map if you’ve already killed him once.
  • Use the Encore Machine to respawn him for repeated farming.
  • Farm until Oscar Mike drops.

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