A munitions trailer for transporting long bodied munitions items such as bombs and missiles from a storage location to a flight line for loading on a combat aircraft. The trailer has forward, middle and aft decks. The forward and middle decks are separated by a forward deck opening. The middle and aft decks are separated by an aft deck opening. The middle deck can be divided into forward and aft middle deck sections separated by a middle deck opening. The deck openings are covered by sets of doors. In the closed position the doors cover the deck openings whereby a flat main deck in available for general transport purposes. The main deck is convertible to one of a choice of open deck configurations by opening one or more of the door sets. When a door set is opened, the deck opening that is uncovered provides clearance for loading and unloading of long bodied munitions items from the deck. Mounting structures are attached to the doors for attachment of other structure which secures the long bodied munitions items to the deck during transport.