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The '''vortex grenade''' is a rare and deadly weapon which utilizes complex warp technology to create a vortex between real space and the [[warp]] on activation. They are very difficult to produce; , with only the [[Adeptus Mechanicus]] manufactures them, and they are not issued to regular troops, but to important Imperial agents such as Inquisitors or Assassins.

It The Vortex Grenade takes the form of a weighty sphere, approximately the size as the fist of a grown man. It consists , consisting of an outer shell which encases a delicate and temperamental warp mechanism. The designs of the device date back to the [[Dark Age of Technology]].

Vortex grenades first appeared as a grenade type in [[Warhammer 40,000: Rogue Trader]] and remained in use through the 2nd edition of Warhammer 40,000 as a Wargear Card. They were unavailable removed as a piece of equipment during the 3rd edition of the game, but were brought back into the 4th edition in the form of an [[Apocalypse]] Expansion Strategic Asset. The 'Tactical Asset' entry in the [[Apocalypse]] Expansion describes them as: ''"The most potent man-portable weapon in the galaxy."''