The chainfist is a Space Marine melee weapon that bolts a small chainsword onto a power fist. It’s built to do one job very well: tear through armoured bulkheads, vehicles, and even Terminator plate.
What the chainfist actually is
Take a power fist, the hulking gauntlet that cracks tanks open with a powered punch. Now attach a chainsword blade about the length of a large bayonet to the front of it. That’s a chainfist.
Both parts share the same energy field, so the whirring teeth bite with the same disruptive force as the fist itself. The result is a weapon that doesn’t just punch through armour, it saws through it.
Why it matters on the tabletop and in lore
The chainfist exists because some targets won’t crack with blunt force alone. Bulkheads, tank hulls, and heavy plate are exactly what it was designed for, and it does that job better than a standard power fist.
In close combat it’s genuinely dangerous, capable of punching through Terminator armour. That’s not a small claim in a setting where Terminator plate is famously hard to kill.
- Cuts through armoured bulkheads and vehicle hulls
- Effective against heavy infantry, including Terminators
- Carried by elite Space Marines, usually in Terminator squads
The trade-off: slow and cumbersome
Like the power fist it’s based on, the chainfist is heavy and awkward to swing. You’ll usually strike last, and if you miss, you’re wide open for the counterattack.
That’s the deal. You trade speed for raw armour-piercing power, and you’d better make the hit count.
Who carries one
Chainfists show up most often among the elite of the Adeptus Astartes, and they’re closely tied to Terminator armour. The bulk of the suit matches the bulk of the weapon.
Other factions get their own versions too, including Chaos Space Marines and the Ordo Malleus. The core idea stays the same: a powered fist with a chainblade built in.
| Weapon | Base | Role |
|---|---|---|
| Power fist | Powered gauntlet | Heavy close-combat punch |
| Chainfist | Power fist + chainsword | Anti-armour and anti-bulkhead melee |
| Chainsword | Motorised blade | Fast, common melee weapon |
Key facts
- A chainfist is a power fist with a bayonet-sized chainsword attached to the front.
- The chainblade shares the fist’s energy field, so it cuts as well as punches.
- It’s designed to carve through armoured bulkheads and vehicle hulls.
- It can punch through Terminator armour in close combat.
- It’s mainly used by elite Space Marines, often with Terminator armour.
- It’s slow and cumbersome, so the user usually strikes last.
FAQ
Is a chainfist better than a power fist?
Against armour, yes. The built-in chainblade lets it carve through bulkheads and heavy plate that a plain power fist struggles with. Against lighter targets the difference is smaller, and it’s still just as slow.
Can a chainfist penetrate Terminator armour?
Yes. Sources describe it as capable of punching through Terminator plate, which is part of why it’s feared in close combat.
Why is the chainfist so slow?
It’s a bulky, heavy weapon, much like the power fist it’s built from. The weight means you swing last, and a miss leaves you exposed.