The RMS-119 EWAC Zack "Eye-Zack" is a mass-production reconnaissance mobile suit. It was first featured in the anime Mobile Suit Gundam ZZ. Later the design was updated for the photo-novel/OVA Mobile Suit Gundam Unicorn.
A reconnaissance variant of the RMS-106 Hizack used during the Gryps Conflict, the Earth Federation Forces' RMS-119 EWAC Zack could also be considered a distant relative of the old Principality of Zeon's MS-06E Zaku Reconnaissance Type. The most visible physical difference between the Hizack and the "Eye-Zack" (as it was sometimes called) was the large radome mounted on its head. This radome was equipped with a passive radar system, allowing the EWAC Zack to monitor enemy forces without giving itself away with active radar signals. The EWAC Zack was also equipped with various additional infra-red, communications, and visual sensors, allowing it to monitor the enemy in a variety of methods. The radome also featured a second mono-eye that ran on a track along the perimeter of its lower side, allowing the pilot to keep a lookout on the ground while flying or jumping overhead.