Even if you haven’t seen the ill-received Batman V Superman: Dawn Of Justice yet, you’ve probably seen some clips of the two titular characters throwing down.

And how did Batman manage to take on the super human boy scout? Well, with a grenade launcher that shoots kryptonite gas, of course.

Now you can 3D print your own version of the Dark Knight’s launcher thanks to a free design made by Michael Daniel Miller*.

This isn’t a static prop gun either, as it has a functioning barrel that can be loaded with an included grenade shell. They don’t actually fire, but it’s an amazing addition nonetheless.

Get this design from MyMiniFactory or Pinshape

Miller says that this design took him more than 50 hours to complete and optimise for 3D printing. While that may sound like a long time, the result is so good that we’re surprised it was done so fast.

If you want to see more of Miller’s work – such as prop guns from Destiny, Fallout 4 and Assassin’s Creed – check out his personal site or his user profile on MyMiniFactory. Both are full of great designs but we suggest his site thanks to the uncropped, hi-res renders of his designs.

Other interesting 3D prints you can get for free:

*kryptonite gas, dead parents and bat costume all sold separately.