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― In-game description

Boolean Gemini is an exotic scout rifle that can only be obtained by completing the quest Lost and Found. It can be dismantled to generate upgrade materials.


Boolean Gemini can be retrieved from one of the following activities/vendors:

Quest source icon Quest
This item can drop as a Quest reward.
The Taken King source icon The Taken King
This item requires the Taken King expansion.


Boolean Gemini can also be upgraded with the following perks:

Column 0[]

High Caliber Rounds perk icon High Caliber Rounds
Oversize rounds built to stagger targets and leave them reeling.

Their mass makes a weapon harder to handle.

Infuse perk icon Infuse
Consume a more powerful Weapon to boost the Attack value of this Weapon.

Column 1[]

Accurized Ballistics perk icon Accurized Ballistics
More range and impact.

Increased recoil.

Smooth Ballistics perk icon Smooth Ballistics
Increased recoil.

Boost to range.

Aggressive Ballistics perk icon Aggressive Ballistics
More predictable recoil.

Enhanced impact. Shorter range and more recoil.

Column 2[]

Unflinching perk icon Unflinching
It's easier to aim under fire using this weapon.

Column 3[]

Single Point Sling perk icon Single Point Sling
Switch weapons faster. Move quicker while aiming.
Hammer Forged perk icon Hammer Forged
Improved range and accuracy.
Perfect Balance perk icon Perfect Balance
This weapon has extremely low recoil.

Column 4[]

One Way perk icon One Way
Bonus Agility on precision kills. Stacks up to three times.
Or Another perk icon Or Another
Bonus Armor on non-precision kills. Stacks up to three times.


  • Boolean Gemini was originally going to be included in the House of Wolves expansion under the name "347 Vesta Dynasty". A remnant of this can be seen on the side of the weapon, which shows '347' in white.