|For an overview of grenade models used throughout the Fallout series, see Grenade.|
Synth relay grenade
- Found near the shooting range in the Advanced Systems division of the Institute.
- Acquired from X4-18 during the Battle of Bunker Hill quest via speech check.
- Found on the bodies of, or pickpocketed from, Coursers.
- Sold by the requisitions synth at the Institute.