The disclosed system, device and method for deploying a sub-module from a carrier vehicle generally includes: a sub-module projectile (100) housed within a carrier vehicle; a rolling diaphragm (115) sealed between a first pressure chamber volume (145) and a second sub-module containment volume (e.g., substantially formed on the opposing side of rolling diaphragm 115 relative to pressure chamber 145); and a release mechanism (500), wherein the sub-module projectile (100) is secured until releasable deployment from the carrier vehicle. Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve ejection, deployment and/or dispersal of a variety of sub-modules from a variety of carrier modules. Exemplary embodiments of the present invention generally provide for the ejection and dispersal of kinetic energy rod warheads from a kill-vehicle.