Harrow's main blueprint is awarded from the Chains of Harrow quest. Component blueprints are obtained from Spy and Survival missions on the Kuva Fortress, Defection missions, and Corrupted Void Fissure enemies.

ItemCountSource

Harrow Prime Neuroptics

Harrow Prime Neuroptics

1

Harrow Prime Chassis

Harrow Prime Chassis

1

Harrow Prime Systems

Harrow Prime Systems

1

Orokin Cell

Orokin Cell

5