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Detail crop from “Blood Angels | Warhammer 40k” by Vitaly Perevoshikov · Source ↗Used with the artist's permission

Space Marines & Primarchs · Melee Weapon

Lightning Claws

Paired armoured gauntlets fitted with three to four curved adamantine blades sheathed in crackling matter-disrupting energy fields, prized by Raven Guard, Night Lords, and Terminator Assault Squads.

Adeptus Astartes (all Chapters)

Type: Melee Weapon
Origin: Adeptus Astartes (all Chapters)
Characters: 7
Units: 8

Illustrated by Vitaly Perevoshikov (“Corvus Corax and Raven Guard Legion”, used with permission) · Additional gallery art by Charles Bautista (“Kayvaan Shrike, Raven Guard Chapter Master”), Seiyi Kohayagawa (“Corvus Corax | Primarch of the Raven Guard | Warhammer 40K”), Daniel Batista (“Bjorn: The Fell-Handed - Warhammer 40k Commission”), Daniel Batista (“Assault Space Wolf - Warhammer 40k Commission”) (used with permission)

Lore & history

Across the blood-soaked battlefields of the forty-first millennium, few armaments command immediate recognition quite like the Lightning Claws. Associated foremost with the war-hosts of the Adeptus Astartes (all Chapters), this melee weapon embodies the tactical doctrine, metallurgical mastery, and merciless lethality of its creators. Whether borne into the heart of a boarding action by legendary champions such as Corax, Kayvaan Shrike, Horus Lupercal, Abaddon the Despoiler or issued to frontline formations including Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors, the Lightning Claws has decided the fate of void-stations, hive spires, and fortress-monasteries from the Segmentum Solar to the Eastern Fringe.

In canonical records preserved within Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination, the Lightning Claws is never treated as a mere tool of war, but as a sacred or terrifying extension of its wielder's martial creed. Every surviving pattern—most notably the Mars Pattern Twin Talons, Raven's Talons & Horus's Talon—carries centuries of battle-honours, kill-tallies, and artificer modifications etched directly into its casing and load-bearing assemblies. When unleashed at close or medium quarters, its signature report and unmistakable silhouette—defined by paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators—serve both to rally allied formations and to shatter the morale of opposing infantry and armoured columns before the killing blow even lands.

Most Brutal Battlefield Feat & Kill Record

TheDropsite Massacre at Urgall Depression & Corvus Corax's Decapitation of Word Bearers Gal Vorbak

In one of the most savage engagements recorded in Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination—remembered in campaign chronicles as TheDropsite Massacre at Urgall Depression & Corvus Corax's Decapitation of Word Bearers Gal Vorbak—the devastating battlefield power of the Lightning Claws was demonstrated beyond all dispute. When elite elements of Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors and heroes of the Adeptus Astartes (all Chapters) (including Corax, Kayvaan Shrike, Horus Lupercal, Abaddon the Despoiler) clashed with heavily entrenched enemy armour and veteran shock-troops, conventional weaponry failed to breach the opposing line.

Bringing the Lightning Claws (Mars Pattern Twin Talons, Raven's Talons & Horus's Talon) to bear at point-blank range, the assault vanguard unleashed the full fury of its paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators. In a matter of brutal minutes, reinforced ceramite breastplates, ferrocrete bunker embrasures, and heavy walker hulls were sheared open, vaporised, or crushed from within. Post-battle Pict-captures and Apothecary/Enginseer autopsies confirmed that no target struck squarely by the Lightning Claws survived the initial impact—cementing the weapon's fearsome reputation across every warzone of the Dark Millennium.

Source: Primary Archive

Design, mechanism & battlefield effect

The internal engineering and battlefield operation of the Lightning Claws rely upon an unforgiving marriage of exotic materials science and high-energy lethality. Constructed around paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators, the weapon channels immense destructive potential into a focused point of impact or terminal salvo. Upon activation, primary power conduits or symbiotic feeder assemblies draw directly from high-capacity micro-reactors, backpack generator cells, or warp-attuned cores, priming the striking assembly within milliseconds.

At the moment of engagement, the Lightning Claws bypasses conventional ceramite, plasteel, and chitinous carapace by attacking the structural integrity of the target's armour at the molecular or sub-atomic level. Standard defensive countermeasures—including refractor fields, storm shields, and reinforced bulkhead plating—rapidly buckle under sustained fire or repeated blows. Because of the extreme thermal, gravimetric, or kinetic stresses generated during operation, only heavily augmented warriors, battlesuits, or elite veterans of Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors possess the physical resilience and neural-link calibration required to wield the Lightning Claws without suffering catastrophic feedback.

Patterns, variants & doctrine

Over ten thousand years of attritional warfare, the Lightning Claws has diverged into numerous regional, forge-world, and relic sub-patterns, foremost among them the Mars Pattern Twin Talons, Raven's Talons & Horus's Talon. Master-crafted examples forged for commanders such as Corax, Kayvaan Shrike, Horus Lupercal, Abaddon the Despoiler incorporate bespoke targeting augurs, reinforced disruption coils, or ancient archaeotech components that elevate their armour-penetration and reliability far beyond standard munitorum or warband issue.

Specialist formations—particularly Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors—further adapt the Lightning Claws to suit extreme combat environments, from zero-gravity Space Hulk boarding corridors to ash-choked siege trenches. These field variants trade bulk or ammunition capacity for overcharged output, twin-linked mounting arrays, or integrated secondary weapons, ensuring that no enemy fortification or monstrous bio-form remains impervious.

Across ten millennia of total war, the Lightning Claws (Melee Weapon) has spawned numerous classified sub-patterns tailored to the operational theatres of the Adeptus Astartes (all Chapters). Foremost among these are the Mars Pattern Twin Talons, Raven's Talons & Horus's Talon, which modify the standard paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators to maximise terminal damage against Terminator plate, Dreadnought sarcophagi, and super-heavy war-engines. Elite champions (Corax, Kayvaan Shrike, Horus Lupercal, Abaddon the Despoiler) and specialist squads (Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors) routinely pair these variants with advanced auspex targeters or psychic synchronization nodes.

Forge World Variations, Internal Mechanics & Artificer Visuals

Within the sealed armouries, forge-fanes, and bio-crucibles that sustain the Adeptus Astartes (all Chapters), the fabrication and maintenance of the Lightning Claws demand the highest tier of craft. Every visual and mechanical detail of the weapon—specifically its paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators—is engineered to withstand extreme thermal, kinetic, and warp-borne stress. On the tabletop and in high-detail fan art, the Lightning Claws is immediately identifiable by its distinctive profile (Mars Pattern Twin Talons, Raven's Talons & Horus's Talon), heavy weathering, and the unmistakable glow or mechanical menace of its active assembly when wielded by Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors.

Notable patterns & relic examples

Mars Pattern Twin Talons: The premier canonical pattern of the Lightning Claws, renowned across the battlezones documented in Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination for its unmatched lethality against heavy power armour and armoured vehicles.
Artificer / Relic Loadouts of Corax: Custom-wrought exemplar of the Lightning Claws featuring reinforced paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators and centuries of recorded battlefield kills.
Vanguard & Siege Issue (Terminators): Frontline configuration engineered for sustained high-intensity engagements, boarding actions, and bunker-clearing assaults.
Master-Crafted Variant (Horus's Talon): Specialized sub-pattern prized by veteran cadres of the Adeptus Astartes (all Chapters) for its superior armour-shearing output and resilience under fire.

Deep Cuts

From the archives

Canonical technical treatises note that the Lightning Claws's paired adamantine knuckle-talons, micro-disruption field conduits, and neural-linked gauntlet actuators must be recalibrated or ritually appeased after every major engagement to prevent catastrophic energy bleed or mechanical seizure. Source: Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination
Among the veteran formations of Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors, surviving a point-blank encounter with or mastering the recoil of the Lightning Claws is considered a definitive rite of passage. Source: Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination; Warhammer 40,000 Core Book (9th–10th Edition)
Archaeotech and battlefield salvage reports confirm that relic examples of the Lightning Claws (Mars Pattern Twin Talons, Raven's Talons & Horus's Talon) have remained in continuous service since the Great Crusade and the War of the Beast. Source: Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination; Imperial Armour Compendium
Sub-Pattern Divergence (Mars Pattern Twin Talons, Raven's Talons & Horus's Talon): Combat-doctrine archives record that the Lightning Claws achieves peak armour-penetration when deployed in coordinated shock-assaults by Terminators, Baal Vanguard Veterans, Assault Squad, Chaos Terminators, Raptors. Source: Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination
Relic Provenance: Several surviving examples of the Lightning Claws wielded by Corax, Kayvaan Shrike, Horus Lupercal, Abaddon the Despoiler contain irreplaceable components predating the Age of the Imperium. Source: Codex: Space Marines (8th–10th Ed.); Horus Heresy Book Three: Extermination; Black Library Campaign Anthologies

Wielded & Fielded By

Characters (7)

Corax · Primarch of the Raven Guard, the Deliverer
Kayvaan Shrike · Former Master of Shadows (Chapter Master) of the Raven Guard
Horus Lupercal · Warmaster, Primarch of the Sons of Horus
Abaddon the Despoiler · Warmaster of Chaos, Lord of the Black Legion
Konrad Curze · Primarch of the Night Lords, the Night Haunter
Huron Blackheart · Tyrant of Badab, Master of the Red Corsairs
Logan Grimnar · The Great Wolf, Chapter Master of the Space Wolves