On the great 100th AMMS website, a small photo collection of the Oklahoma Show and Tell 2006 is presented, featuring an AQM-34M with large areas painted in orange. Details are very sparse, but it appears that this is a Teledyne-Ryan Aeronautical (TRA) exhibit, and maybe the only example with the upturned 'M' nose. It also has the underwing fuel tanks.
Craig Kaston reports that TRA had an AQM-34M on display at the 1988 AirSpace America trade show in San Diego. This is most likely a different example, in gray. A photo can be found on this SmugMug photo page.