Looking at an old sprue can be excruciating. Do you commit to building a cannon or a mortar? How do you know you're making the right choice? Do you really have the right to assemble your old artillery pieces, knowing full well you'll be left with half a sprue of unused - unusable! - components?
Well now the pressure's gone! These bits will enable you to turn your venerable OOP kits into a cannon and a mortar. It includes a wheel, the central carriage piece and the little... crossbar... holder... part that keeps the whole thing together. Clip your spures fearlessly! Assemble with abandon! Fire at will! FOR THE EMPIRE!