Fella's, the western conversion kit for the bolt guns, i.e. Disc Extreme and LRH does expose the breech by utilizing a modified bolt handle and breech plug to adapt to musket or #11. It's a very simple change over. You disassemble your current bolt and install your firing pin assembly into the new bolt, install the new plug and nipple and your ready to fire legally. The nice thing about it is now you have two set ups for the rifle if you choose to travel to other parts of the country and would like to use the 209 system.