A dispenser module for storing and launching countermeasures on an aircraft, comprising a magazine formed by a plurality of cartridges adapted to each hold a countermeasure where the dispenser module is adapted to be mounted in a side wall of an aircraft pylon structure, where the dispenser module comprises a spoiler and a hatch, where the magazine is mounted to the hatch, where the dispenser module is adapted to assume a first idle state in which the spoiler and the hatch are retracted to be flush with the side wall before a countermeasure has been launched, and where the dispenser module is adapted to at least assume a second active state in which the spoiler and the hatch extend outwards from the side wall when a countermeasure is to be launched, and where the dispenser module is adapted to retract to the idle state when a countermeasure has been launched.