Gustav and Dora were massive German WW2 rail cannons, able to fire an 80cm shell through 7 metres of concrete! It weighed around 1350 tonnes and could fire shells a distance of around 47 km. These instructions will show you how to build your own mini scale rail cannon out of LEGO.
Instructions will be emailed as a PDF with step-by-step pictures and a list of bricks you will need so you can build this creation using your own LEGO pieces. PDF instruction link will be emailed after purchase and will be available to save or print for 30 days.
All instructions are originally made and designed by BattleBricksDownUnder.