Ted, if you need any sockets, I probably have them. I had lots of trouble removing a percussion nipple on a set of Manton barrels. It had a square head and none of my existing sockets seemed to do the job and heat and soaking in penetrating oil for weeks did not help either. I finally went on ebay and ordered several types. None of them worked, so I started to make a tool to fit the nipple. I was about half done when a friend, who is a much better mechanic than I am, bought the gun. Still have lots of virgin sockets.