Arii made a set of four Patriot missile systems. They included the missile launcher, controller, radar and antenna. They were 1/48 scale and the prime movers only vaguely resembled the HEMTT-based transports. They honestly looked more like models Godzilla steps on than the actual system.
Arii boxed them with and without the truck to move each component. Heller has released the missile launcher in 1/48 scale. I do not know if the kit is the same as the Arii one.