Abstract: The invention relates to techniques used to transport artillery-type autonomous weapons, such as cannons or mortars. The invention can be used to transport a heavy weapon on the rear deck of a light all-terrain vehicle. The interface (3, 4) between the vehicle (2) and the weapon (1) comprises a retractable structure (3), e.g. a fork crane (30), a cable (32) and an electrical winch (31). When retracted, the retractable structure is designed to form a mechanical connection between the vehicle and the weapon, and, when released, said structure is configured to enable the weapon to move in relation to the vehicle, such that the stresses produced with the launch of a missile are not transmitted to the vehicle. Moreover, when the retractable structure is in the released position, the weapon can be moved away from the vehicle while remaining connected thereto and, in the retracted position, the structure can be used to position the weapon precisely on the vehicle.