Also called a rope-cocker, the cocking harness reduces the energy required to cock a crossbow by 50 percent.
- It consists of a sturdy cord, wrist straps or handles, and pulley-equipped hooks or a cocking sled that temporarily attach to the crossbow string.
- The user cocks the crossbow in a single motion by standing up while pulling on the wrist straps or handles.
- The cocking harness is very efficient, although it does require some manual dexterity. It allows less physically capable individuals to cock the crossbow themselves.