Abstract: Child restraint systems are disclosed. The child restraint systems can include a base portion and a seat portion. The child restraint systems can include at least one motor-driven subsystem for installing the child restraint system in a vehicle, such as a motor-driven tensioner and/or motor-driven leveler. The motor-driven subsystem(s) can be coupled to a power source, such as a battery pack. The child restraint systems can also include a microcontroller, which can be coupled to the power source and a motor for the motor-driven subsystem. The base portion and/or the seat portion can include a plurality of sensors in communication with microcontroller. The sensors can detect an installation condition and/or state of the child restraint system.

Abstract: A trigger assembly for a paintball gun preferably includes a trigger having a bearing assembly arranged snugly within a bearing receptacle of the trigger to provide a trigger pivot. The bearing assembly can include a pin receptacle on each side of the bearing assembly to receive a pair of trigger pins in a mating relationship. The trigger assembly can be mounted in a paintball gun by arranging the trigger and bearing assembly in a trigger groove of a grip frame of the paintball gun and aligning the pin receptacles with pin holes formed through the wall of the grip frame on opposite sides of the trigger groove. The pins can then be inserted through the pin holes into firm contact with sidewalls of the pin receptacle(s). Each of the pins can be independently adjusted to arrange the trigger in a desired lateral location within the trigger groove.