Abstract: A weapon system including a carriage and a launching tube for a projectile mounted to the carriage on a cradle in a manner which secures the launch tube to the cradle during transportation, handling and storage and yet permits recoil of the launching tube. Bosses having the shape of stubs are attached to the launching tube and bosses having the shape of mortices forming grooves on the cradle form complementary pairs of elements which connect the launching tube transversely with respect to the cradle without opposing the recoil of the launching tube; the cradle thus forms a zero length ramp for the launching tube. Removable reinforcement pins are provided to secure the launching tube to the cradle. The bosses and the reinforcement pins are placed symmetrically with respect to a central longitudinal axis of the launching tube.