The Climax Gundam is one of ZAFT's ZGMF-X series of Gundam units build in C.E. 71 using technology derived from the four captured Alliance's GAT-X series of Gundam units.
2 x MA-M01 "Lacerta" Beam Sabers
Like its sister units, the ZGMF-X09A Justice Gundam and ZGMF-X10A Freedom Gundam, the Climax Gundam is primarily equipped with a pair of MA-M01 "Lacerta" beam sabers, which are stored on the side skirt armor. Since the beam sabers are powered by the suit's nuclear reactor, they have higher output than the ones used by the original GAT-X series. The two beam sabers can be combined into a twin-edged beam saber, and this form is known as 'Ambidextrous Halberd'. The
2 x MA-M15 Beam Handguns
MA-M20 "Lupus" Beam Rifle
The Climax Gundam is equipped with MA-M20 "Lupus" Beam Rifle as primary ranged weapon, which is the same rifle used by its companion units, the ZGMF-X09A Justice Gundam and ZGMF-X10A Freedom Gundam. This beam rifle is stronger than the ones used by the original GAT-X series or the ZGMF-600 GuAIZ as it is powered by the suit's nuclear reactor. The beam rifle can be stored on the rear skirt armor when not in use.
MMI-GAU5 55mm CIWS
MX-X1500 "Destroyer" Long-Range Satellite Cannon
Laminated Anti-Beam Shield
The Climax Gundam is equipped with a shield as primary defensive armament. Unlike most of shields which equipped with anti-beam coating, the Climax's shield has a laminated armor surface. The same type of shield is also used by the ZGMF-X09A Justice Gundam and ZGMF-X10A Freedom Gundam.
Like the other four units, the Justice is equipped with Phase Shift armor. Thanks to its N-Jammer Canceller and nuclear reactor, the PS armor is capable of being active for a lot longer than on non-nuclear powered suits.