The melta is a short-ranged fusion weapon that turns armoured targets into vapour. It’s one of the Imperium’s go-to answers to tanks, and its brutal close-quarters punch makes it a favourite for infiltration and vehicle hunting.
What a melta actually does
A melta works by agitating the target’s molecules at a sub-atomic level, cooking or melting it outright. Some Imperial patterns instead project a small fusion reaction using a pyrum and promethium fuel mix. Either way, the result is a blast that burns through almost anything.
The closer you are, the worse it gets. Melta weapons lose effectiveness at range, which is why they’re short-ranged and slow to fire. But up close, they’re devastating.
A melta beam vaporises whatever it hits. A human body can simply disappear. Tougher material glows white hot for a moment, then explodes into searing vapour. In enclosed spaces, that vapour will cook your lungs if you breathe it in.
Why it matters on the battlefield
Meltas are prized for killing armoured vehicles. They’re also a safer alternative to plasma weapons, which are unreliable and can kill the user.
They’re quiet, too. Apart from the roar of a target’s moisture vaporising, a melta makes little noise when it fires. That makes it perfect for infiltrating parties who want to destroy enemy tanks before they can fight.
Many races use the same basic technology. The Imperium calls them meltas, or sometimes fusion guns, melters, cookers, and vape guns. The Tau and Eldar field their own versions, usually for the same tank-hunting role, though the underlying tech can differ completely.
Imperial melta patterns
The meltagun is the most common melta in the Imperium. You’ll find it across the Imperial Guard, Space Marines, Ordo Hereticus, and Adepta Sororitas.
The multi-melta is the heavy version, usually mounted on vehicles but sometimes carried by Space Marine Devastators or Sisters of Battle. The inferno pistol is a rare, smaller pattern used by the Sisters of Battle, Inquisition agents, and a handful of Space Marines like Commander Dante and Vanguard Veterans.
Larger still is the melta cannon, a vehicle-mounted weapon that can destroy several targets at once. It appears on the Devil Dog, a Hellhound variant, and an even bigger version sits on several classes of Imperial Titan.
- Meltagun: standard infantry melta
- Multi-melta: heavy, vehicle or Devastator mounted
- Inferno pistol: rare sidearm, short range
- Melta cannon: vehicle and Titan scale
Xenos and Chaos meltas
Chaos forces use melta weapons too, often corrupted versions of Imperial designs. The Eldar and Tau field their own melta equivalents, typically for tank hunting. The Necrons have melta-like technology as well.
These weapons often produce similar effects through very different means. A melta is less a single design and more a category of weapon that burns through armour at close range.
Key facts
- Meltas work by sub-atomic agitation or a small fusion reaction, vaporising armour and flesh.
- They’re short-ranged and slow to fire, but stronger the closer you get to the target.
- Meltaguns are the most common Imperial pattern; multi-meltas and inferno pistols are heavier or rarer variants.
- Meltas are quiet, making them ideal for infiltration and destroying vehicles before battle.
- Eldar, Tau, and Necrons use similar weapons with different underlying technology.
FAQ
What is a melta in Warhammer 40k?
It’s a short-ranged fusion weapon that cooks or vaporises its target. The Imperium uses them mainly for destroying armoured vehicles, and they’re especially effective up close.
How does a melta differ from a plasma gun?
Plasma weapons are more versatile but unreliable and can kill the user. Meltas are shorter-ranged but safer and more focused on melting through heavy armour.
Which factions use melta weapons?
The Imperium uses them widely, but Chaos, Eldar, Tau, and Necrons all field melta-equivalent weapons with similar effects.