This invention is a spring-powered bolt launcher to facilitate tugging wire or cable between two locations; typically, the locations are in low light levels, are remote by about 10 20 meters and are above a suspended ceiling in a building. The present launcher includes a unique hoop-rocker-slide mechanism to assure safe, controlled and precise launching of a bolt from the origin toward the target. The present launcher system also includes unique combinations of spliced-sequential tethers capable of accurate placement even over ranges of 20 30 meters. The present launcher system is also disclosed in the form of field-configurable kits which are carried in a portable case including a group of selectable component trays. Once the bolt is attached to cable to be pulled, the tether allows the operator to tug cable to be connected between the locations.