Lockheed Martin was granted a contract worth $25 million to continue developing palletized munitions. Air Force airlifters like C-130s and C-17s were assessed to deliver air-launched weapons such as Joint Air-to-Surface Standoff Missiles. The roll-on capability, which does not require any changes to the aircraft’s hardware, can fit on any C-130 that carries palletized cargo.
Source: https://www.airforcemag.com/usaf-wants-to-drop-cruise-missiles-from-airlifters/