Abstract: An all ballistic gas actuated ejector arrangement for aircraft store racks that are carried by military type aircraft and the like for releasably attaching to the aircraft stores, such as conventional or nuclear weapons, in which the ejector arrangement is duplicated in mirror image form at the usual fore and aft positions of the rack, with each ejector arrangment being in the form of an elongated housing with which the usual fore and aft sway braces are respectively integral, which ejector housing internally defines an elongate internal chamber in which are slidably mounted, in substantially telescoping coaxial relation with the housing, an outer piston and an inner piston, that in the dormant relation of the ejector are disposed within the ejector housing with like ends of same adjacent the open end of the ejector housing, with the rack ballistic gas being supplied to the other end of the housing, and the ejector outer piston having a ballistic gas receiving chamber and a valve arrangement for entrapping th