This CNC machined chrome-moly steel part replaces the factory Encore (centerfire) firing pin breech plug to allow the use of rimfire cartridges in the Encore. Easy to install with no gunsmithing required.
This conversion kit is necessary for custom barrels with a straight bore. Thompson Center rimfire barrels are offset, so this kit is not necessary for factory barrels. Easy to install by removing one allen head screw on the frame directly in front of the hammer. Drop out the centerfire plug and replace it with the rimfire plug. Reinstall the allen head screw and you are ready to shoot rimfires.