The transuranic arquebus is the Adeptus Mechanicus’ answer to a tank problem: a long-range sniper rifle that fires a shell of depleted transuranium, dense enough to punch clean through armour and kill whatever’s inside with the pressure wave. It’s carried by Skitarii Rangers and Vanguard, and it’s one of the strangest, most specialised weapons in the 41st Millennium.
What it is and who carries it
The transuranic arquebus is a two-handed rifle used by Adeptus Mechanicus Skitarii Rangers and Vanguard. It’s not a general-issue weapon; it’s a specialist tool handed to marksmen who need to delete something important from a distance.
In game terms it’s a sniper rifle with a ludicrous 60″ range, and the models carrying it have Relentless, so they can move and still fire at full effect. That combination lets you park a unit in cover and threaten nearly the whole board.
- Used by Skitarii Rangers and Skitarii Vanguard
- Sniper weapon with 60″ range
- Wielder has Relentless, so moving doesn’t stop full-rate fire
How the ammunition works
The gun fires a shell of depleted transuranium. ‘Transuranium’ just means elements with an atomic number above 92, and in 40k that includes hyper-dense, atomically unstable stuff that’s perfect for punching holes in armour.
When the shell hits, it doesn’t just make a hole. The pressure wave behind the projectile pulps any biological crew inside the vehicle, so even a shot that doesn’t hit something vital can still kill everyone aboard. It’s also been shown to punch through a Thunderhawk Gunship’s cockpit canopy, which gives you an idea of the kind of material it ignores.
What it does on the tabletop
In 7th Edition, the transuranic arquebus is an AP3 Armourbane sniper rifle. Armourbane means you roll an extra D6 for penetration, and sniper weapons are Strength 4 against vehicles by default. That means a lucky roll can glance even a Baneblade from any facing.
It’s not the most reliable anti-tank weapon in the Mechanicus arsenal, though. Arc weapons are generally better for bringing down heavy targets like Monoliths or Hammerheads. But against transports and lighter vehicles, the arquebus is a serious threat, and there’s no vehicle it can’t theoretically destroy.
| Edition | Profile | Notes |
|---|---|---|
| 7th | AP3, Armourbane, Sniper, 60″ range | Roll extra D6 for penetration; S4 vs vehicles |
How it fits with other Mechanicus weapons
The arquebus sits alongside the galvanic rifle in the Skitarii arsenal, and its appearance suggests it’s powered in a similar way. Some fans call it the Imperial Railgun because of that resemblance and its anti-tank role.
It occupies a niche that’s neither a stubber nor an autogun. It’s too specialised for general infantry work, but that specialisation is exactly why it exists: to reach out and crack open armour that would otherwise roll right over your line.
Key facts
- The transuranic arquebus is a sniper rifle used by Skitarii Rangers and Vanguard.
- It fires depleted transuranium shells that pierce armour and pulp the crew inside with a pressure wave.
- On the tabletop it has 60″ range, AP3, Armourbane, and Sniper, with Relentless on the wielder.
- It can penetrate a Thunderhawk Gunship’s cockpit canopy.
- It’s sometimes called the Imperial Railgun because of its look and anti-tank role.
FAQ
What is a transuranic arquebus?
It’s a long-range sniper rifle used by Adeptus Mechanicus Skitarii. It fires a shell of depleted transuranium that can punch through tank armour and kill the crew with the pressure wave.
Which units can take a transuranic arquebus?
Skitarii Rangers and Skitarii Vanguard can both be equipped with it. It’s a specialist option, not a standard weapon.
Is the transuranic arquebus good against vehicles?
Yes, but it’s swingy. Armourbane gives it a chance to glance even heavy tanks, but Arc weapons are more reliable for that job. Against transports and lighter vehicles, it’s very effective.