Forerunner Catalyst

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Defeat combatants while using this weapon to unlock this upgrade.

ForerunnerSidearm · Kinetic weapon

Forerunner in the Database›The catalyst in the Database›

Unlock

Defeat combatants while using this weapon to unlock this upgrade.

Targets defeated700

What it does

For several seconds after a final blow, Alternate Weapon Action to consume part of your ammo reserves, converting your next thrown grenade into a fragmentation grenade.

How to get the catalyst

Acquired from a 30th Anniversary Exotic Quest.

Weapon source: "Magnum Opus" Quest