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Storm bolter

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Bolt Weapons: Bolt pistols - Boltguns - Storm bolters - Heavy Bolters - Psycannons - Hurricane Bolters - Vulcan Mega-bolters - Other bolt weapons
Storm Bolter components

The Storm Bolter is a compact, double-barreled version of the Boltgun. Resembling two boltguns attached side by side, the storm bolter is capable of withering fire without hindering maneuverability, granting the wielder enormous individual firepower. Storm bolters are popular with Space Marine forces, specifically in the hands of Terminators and as infantry defense on Rhinos.

Outside of the Space Marines and Adepta Sororitas, storm bolters are utilized by few elite Imperial forces.[2]

Storm bolters are often adorned with glyphs and purity seals that point out their ancient origin.[1]

Imperial Bolter designs

Adeptus Astartes

Hecaton variant

The Hecation variant MkIIIc storm bolter is a standard issue Terminator weapon.[4a]

Hecaton variant

Incaladion pattern

The Incaladion pattern storm bolter is known to have been used by Carcharodons Terminators during the Badab War.[4d]

Incaladion pattern

MKIII pattern

The MKIII pattern storm bolter is known to have been used by the Astral Claws during the Badab War.[5]


The Salamanders are known to have used Nocturne-Ultima modified storm bolters during the Badab War.[4b]



The Ryza-pattern Storm bolter is almost exclusively used by the Adeptus Astartes.[6]

Umbra pattern

The Umbra pattern storm bolter is known to be used by Terminators of the Red Scorpions. With the dual magazines pictured below their ammunition capacity is forty rounds.[3]

Umbra pattern

Ultima pattern

The Sons of Medusa are known to have used Ultima patternstorm bolters for their Terminators during the Badab War.[4c]

Ultima pattern

Adepta Sororitas

Other Boltguns used by Imperial or human factions and organisations



Lastrum Pattern

Used by the Adeptus Custodes. This pattern of bolt weapons is named for the weaponsmiths of the Lastrum Core Clan of the Appolyne workshops of Terra. Other than being exemplars of their kind in terms of skill of fabrication, they would not be remarkable save for their uniquely powerful ammunition. Rather than the usual 'kraken' type bolts utilized by the wider sweep of the Legio Custodes, the artisans of the Lastrum clans hand manufacture only customised mass-reactive heliothermic warheads for their bolt shells. Once within their target, these burst into brief, but sun-hot incendiary detonations, incinerating their victims from within. These shells are uncommonly dense, requiring a far stronger charge to launch than common bolt shells, and only the Lastrum's uniquely sturdy construction for a weapon of their size can withstand the stresses of their repeated firing.[8]

The sheer resources and artifice of these weapons are immense, and they could never hope to be mass produced to arm the Space Marine Legions, and even the output of entire generations of the Lastrum themselves can barely satisfy Legio Custodes' demands.[8]


M33 MkIV Pintle-mounted Storm Bolter

Mounted on the Mark V Phobos Pattern Land Raiders.[7]

M33 MkIV

More storm bolter designs

Due to the fact that in most cases specific storm bolter images are not labelled, unnamed designs are collected here, grouped by outward similarity.

Ammunition types

See Also


Space Marine Infantry Weapons
Melee Weapons ChainswordChainfistCombat KnifeForce weaponLightning ClawPower axePower fistPower swordPower MaulThunder hammerExecutioner Relic Blade
One-Handed Weapons Bolt pistolHand flamerPlasma pistolInferno PistolGraviton PistolAssault BolterPlasma ExterminatorBoltstorm GauntletFlame GauntletGrapnel LauncherHeavy Bolt PistolAbsolvor PistolReductor PistolPlasma CutterWrist Mounted Grenade Launcher
Two-Handed Weapons BolterCombi-weaponFlamerLas FusilMeltagunMelta RiflePlasma gunGrav-gunShotgunSniper rifleStorm bolterBolt RifleBolt CarbineExecutor Bolt RifleHeavy Bolt RifleHellstorm Bolt RifleInstigator Bolt CarbineOcculus Bolt CarbineStalker BolterPlasma IncineratorAssault Plasma Incinerator
Heavy Weapons Assault cannonAstartes Grenade LauncherAutocannonHeavy bolterExecutor Heavy BolterHellstorm Heavy BolterHeavy flamerIronhail Heavy StubberLascannonMissile launcherMulti-meltaPlasma cannonFragstorm Grenade LauncherCyclone Missile LauncherHeavy Plasma IncineratorAccelerator Autocannon
Grenades Frag grenadeKrak grenadeMelta bombHaywire MineShock GrenadeSmoke GrenadeAnti-Plant GrenadeRad GrenadeStasis GrenadeVortex Grenade