The FA-010S (FA-010B) Full Armor ZZ Gundam is an upgrade of the MSZ-010S Enhanced ZZ Gundam that appears in Mobile Suit Gundam ZZ.
While it was a successful plan, the MSZ-010S Enhanced ZZ Gundam was not a permanent fix to MSZ-010 ΖΖ Gundam's structural issues. With that in mind, Anaheim Electronics constructed a Full Armor System for the Enhanced ZZ Gundam, adding many missile launchers and an extra beam cannon for higher firepower. It also received additional armor with anti-beam coating, enabling it to withstand standard output beam shots for around 3 seconds. While the Full Armor upgrade solved many of the ZZ Gundam's problems, a new problem was introduced in the form of the armor's restrictive bulk, which inhibited transformation. In order to transform into G-Fortress mode, the Full Armor parts would have to be removed, returning the mobile suit to its Enhanced ZZ Gundam form.