The RMS-099 Rick Dias (RMS-099 リック・ディアス) is a second-generation mass-production attack-use mobile suit introduced in the anime Mobile Suit Zeta Gundam.
Developed by Anaheim Electronics, the RMS-099 (MSA-099, MSA-009) Rick Dias became one of the first mass-produced mobile suits of the AEUG's Zeta Project for their fight against the corrupt Titans. Because many engineers who worked on the Rick Dias were former Principality of Zeon members, the Rick Dias featured many similarities to Zeon mobile suits such as a mono-eye sensor. Originally, the Rick Dias ("Dias" is derived from Bartolomeu Dias, the Portuguese explorer who first rounded the Cape of Good Hope) was supposed to be called γ Gundam (Gamma Gundam) as it is built out of the new Gundarium γ. This material was developed by Axis and has strength similar to standard Gundarium yet weighs less, making the suit lighter and thus allowing it to accommodate a greater fuel capacity.
