The Lightning Cannon is a massive directed energy weapon used by the combat walkers of the Questor Imperialis, the Imperial Knights, and by the Renegade Knights of the Questor Traitoris. The Lightning Cannon is used primarily by the Questoris Knight Magaera but can also be found in use by Freeblade Knights.
The Lightning Cannon is a Knight-sized variation of the Lightning Gun carried by the Thallaxii of the Adeptus Mechanicus' Ordo Reductor. The Lightning Cannon uses focused beams of electromagnetic energy to vaporise infantry and blast apart armour.
- The Horus Heresy - Book Four: Conquest (Forge World Series) by Alan Bligh, pg. 303
- The Horus Heresy - Book Five: Tempest (Forge World Series) by Alan Bligh, pg. 135
- Imperial Armour Index: Forces of the Astra Militarum (8th Edition), pg. 100
- Imperial Armour Index: Forces of Chaos (8th Edition), pg. 62
- Warhammer 40,000: Freeblade (Video Game)
- Forge World Webstore - Questoris Knight Magaera