The U.G.A. "Hammerfist" is a well known example of U.G.A. military engineering. The familiar metallic "SHOOMP" sound of one firing is feared by many Legonian rebels.
The Hammerfist's twin cannons are loaded from behind, through an ammunition rack. Each round contains two shells, which the cannon fires in an arc.
Like I said, I have a LOT of U.G.A. vehicles lying around. There's three more to go.
Here's a shot without figs.
You don't want to see this, unless you're into decapitation.
Blablabla, C&C, ask if you want more pics...