My uncle gave me an old percussion cap 45 cal ML today. It was a kit gun that he put together in the early-mid 80s. He can't find any paper work at all on it. The barrel simply says "Jukar Spain-45 cal, Black powder only". He shot it once (cleaned it afterword) and never used it again. I'm planning on tearing it down, giving everything a good cleaning and re blueing the barrel. I'm going to have my gun smith to take a look at it to make sure everything looks ok.