A Concussion Grenade is a type of Imperial grenade that releases a powerful concussive blast. This small explosive, though available to all Imperial military forces, is a particular favorite of Imperial Navy voidsmen.
Crowded voidship corridors, with their sudden turns and enclosed spaces, are the perfect environment for voidsmen's concussion grenades.
These hand-thrown bombs carry a charge that detonates with a resounding explosion, a burst that is even more dangerous within enclosed areas.
Many a surging breakthrough attack has been halted with the judicious use of a few well-placed concussion grenades.
- Codex: Elucidian Starstriders (8th Edition), pg. 10