A carabiner comprising a body having an opening, a closure movably coupled to the body, the closure being movable to an open position, and to a closed position in which the opening is closed by the closure such that the body and the closure define a closed shape, and an actuator, coupled to the closure and operatively connected to the body, the actuator being configured to cause the closure to move to the closed position in response to loading of the carabiner, and to cause the closure to move from the closed position to the open position in response to unloading of the carabiner.
