The Kit from C&S did come with the hammer spring and the firing pin spring but it also came with a sear and a comander style hammer that needed to be fitted. the sear was easy to fit by putting it in the Powers stoning fixture and following the instructions. the hammer is a different story.Powers makes a fixture called the series II. I think that is where the problem started. I was to put the hammer in the fixture and just polish the hooks. I started polishing the hooks and the stone would only tuch the inside of the hammer, so without thinking I assumed the hammer was not square, I think I was wrong. Sunday I was putzing around the shop and decided to check the stoning fixture out. The fixture isn't square- so I'm going to take it to work and get one of the machineists to mesure it for me. We'll see what happens. Its going to tick me off if that is the cause , I spent 150.00 for the stupid thing and it screwed up 100.00 worth of parts. :?