The arc maul is a melee weapon built for the Adeptus Mechanicus, and it does exactly what the name suggests: it turns into a rod of crackling lightning when you switch it on. Anyone it hits gets cooked from the inside out, and that’s the whole point.
What it does
Once activated, an arc maul becomes a live lightning rod. Enemies struck by it convulse as the energy courses through them, which is a polite way of saying they die badly.
It’s a close-combat tool, not a ranged one. The Skitarii who carry it close the distance and let the charge do the work. Think of it as a cattle prod scaled up for war.
Who carries it
Arc mauls are standard kit for Adeptus Mechanicus Skitarii. They show up in the Skitarii armouries alongside a whole family of arc and shock weapons, from the arc pistol to the heavy arc rifle.
It’s worth separating the arc maul from its cousins. The shock maul is the milder, crowd-control version used by Arbites and Enforcer squads. The arc maul is the military-grade upgrade, meant to kill rather than just subdue.
Known patterns
The main pattern that gets named in the sources is the Branx Mk III Arc Maul. It’s described as a heavy lightning rod, and enemies hit by it convulse as the energy runs through them.
That’s the only specific pattern with a name attached in the material we’ve got. Other patterns almost certainly exist, but they haven’t been detailed.
| Pattern | Notes |
|---|---|
| Branx Mk III Arc Maul | Heavy lightning rod; struck enemies convulse as energy courses through them |
Arc weapons in context
The arc maul belongs to a broader family of Mechanicus arc technology. Arc weapons run on bulky perma-capacitors shipped from Mars, and some of those zinc-plated blocks have been holding a charge since the early days of the Imperium.
When an arc weapon fires or discharges, it makes a loud crack and throws out blue-white electricity. On the tabletop, arc weapons tend to behave like haywire gear, good at messing up vehicles and machines. The arc maul is the melee branch of that same tech tree.
Key facts
- The arc maul is a melee weapon used by Adeptus Mechanicus Skitarii.
- When activated, it becomes a rod of lightning that electrocutes anyone it strikes.
- The Branx Mk III is the named pattern, described as a heavy lightning rod.
- It’s distinct from the shock maul, which is a milder crowd-control tool for Arbites and Enforcers.
- Arc weapons like this run on perma-capacitors from Mars and discharge with a loud crack of blue-white electricity.
FAQ
Is the arc maul the same as a shock maul?
No. The shock maul is the softer, crowd-control version used by Arbites and Enforcers. The arc maul is the military-grade Skitarii weapon, and it’s built to kill.
What does an arc maul do when it hits?
It turns into a rod of lightning on activation, and anyone struck convulses as the energy courses through them. In practice, that means death by electrocution.
Who uses arc mauls in Warhammer 40k?
Adeptus Mechanicus Skitarii are the main users. They’re listed in the Skitarii armoury alongside other arc and shock weapons.