Hey Smart Dog,
Thanks for the info. In this case, the lock has already been inlet into the stock. I am wanting to change it to percussion. I called a company that sells the Chamber Percussion lock and parts for the locks. When I spoke to them, they advised me that the hammer, tumbler and mainspring needed to be changed out also. I thought that it was a little odd, so called the Chambers lock and spoke to a woman there. Chambers was not in the office at the time. She also said that all three needed to be changed out and that it would be easier to buy the percussion lock itself. She said that the mainspring needed to be moved. I am confused by all of this, as if you order parts from Chambers, they are all interchangeable for the Golden Age, except for specific flint/percussion parts. However, the mainspring and tumbler are the same product number. Hense my confusion. I was hoping someone here had done a conversion on this specific lock before and could explain it to me. Hope that makes it clearer.
Jerry