I melt 10lbs of bronze and use it to make the gun. Here are the other two videos in this series so far: Part 1; https://www.youtube.com/watch?v=idMkzmXAgeI part 2: https://www.youtube.com/watch?v=V1WwZpqve8s Help me make videos by donating here: https://www.patreon.com/CodysLab