The Mission RSD Crank Aid by Mission Archery is a silent, mechanical cocking device designed to make drawing your Mission crossbow easier, smoother, and more precise. The RSD (Removable Silent Draw) system fits virtually all Mission crossbows and can be installed or detached in seconds without tools. Its patent-pending design uses a floating rope-pull and ambidextrous reel that reduces cocking effort by up to twenty-five times — ideal for hunters and shooters who want consistent draws with far less physical effort. The quiet operation and equal tension on both sides of the bowstring help improve accuracy while maintaining stealth in the field. Proudly made in the USA, this crank aid is a valuable accessory for any Mission crossbow user. Mathews Archery Mathews Mission RSD Crank Aid 80770