I used 3dBuilder to split some pieces even smaller so they would fit on my print bed. I primarily used the wood filament because it sands well and takes paint nicely. I used spackle to cover up the seams of joining pieces....lot of work but worth it. I used spray paint, paint pens and brushes to finish it. I thought flat black looked best (more like a real weapon) and metallic aluminum for the silver bits. AWESOME print!