This press is the latest in the popular line of RCBS Reloader Special presses. It features a more comfortable ball handle and a primer arm that lets you prime cases at the same time you resize. Features: Compound leverage system Solid aluminum block "O" frame, offset for unobstructed access Corrosion-resistant baked powder finish Spent primers eject through side of ram into catcher Easily upgraded to progressive reloading with an optional Piggyback II conversion unit 1-1/4" x 12 thread for shotshell die kits and Piggyback II 7/8" x 14 thread adapter for all standard reloading dies and accessories