The CVA Northwest Conversion Kit converts your 209 CVA Muzzleloader to a Northwest Legal Musket Cap Ignition. The NW set includes a firing pin retainer-bushing, o-ring for the firing pin retainer-bushing, firing pin spring, NW firing pin, NW QRBP breech plug, NW QRBP tool. Fabricated specifically for CVA Optima, Wolf and Accura Series Muzzleloaders, the CVA Northwest Conversion Kit also works well on other models 2010 or later.