An injection device is for automatically squeezing injection liquid from a container and includes: a housing； an injection spring configured to cause squeezing of the injection liquid from the container； the injection device defining a longitudinal central axis and a proximal direction； a metering piston mounted so as to be movable in the direction of the longitudinal central axis of the injection device； the metering piston being configured to, when squeezing injection liquid, move in the proximal direction； a setting device for setting the quantity of injection liquid to be squeezed； an end stop which establishes a terminal position of the metering piston； and, the setting device having an adjustment unit configured to adjust the position of the end stop.
