Engineered for precise and swift primer seating, this primer seater is a must-have for any reloading enthusiast. It comes complete with primer plugs and sleeves, catering to both large and small rifle and pistol primers. The design allows you to switch sizes efficiently in under 60 seconds, ensuring minimal downtime. Compatible with Rock Chucker II, Jr., Reloader Special, and most "C" Presses, this primer seater offers versatile functionality for various reloading setups. Please note, it is not compatible with RC Supreme. This tool promises to enhance your reloading process with its speed and accuracy. Make every reload count with this reliable and user-friendly primer seater.