Some Gundam Exia info gleaned from the HG Exia manual by Mark
Simmons:
Originally Posted by Mark
WEAPONS
The "seven swords" attached to each part of the Exia's body can be
used to suit the mission.
GN Long Blade and GN Short Blade: The GN long blade is attached to
the left hip, and the GN short blade to the right hip. Because
their blades are enveloped in GN particles, they display phenomenal
cutting abilities. Of the Exia's seven swords, these required the
most development time.
GN Sword: The Exia's main weapon. Attached to the right arm. This
is the largest of the seven swords, and its blade is longer than
the Exia's arm. Although it has great destructive power, there are
situations where it can't be used due to its size. Aside from
functioning as a sword, it can also transform into rifle mode and
be used as a gun. Its GN beam has high destructive power, and no
army has a means of defense against it.
GN Beam Saber: Attached to both shoulders of the Exia. When it is
drawn from the shoulder, a blade of GN particles appears. Rather
than a physical sword, it is a pure beam blade. While the beam
saber has high power, its power can be decreased by atmospheric
conditions or methods of beam diffusion. Every nation is rushing to
develop these as next-generation weapons for mobile suits, but only
Celestial Being has succeeded in implementing them.
GN Beam Dagger: Attached to the Exia's waist. The basic system is
the same as the GN beam saber, and it emits a beam blade rather
than a physical sword. Its beam blade is adjusted to be shorter
than that of the saber, making it harder to diffuse. Its pilot
Setsuna has taken advantage of this to develop a tactic of throwing
these weapons at distant enemies.
GN Vulcan: A small gun installed in both arms of the Exia. Although
the GN sword's rifle mode has high power, it requires a
transformation action and can't respond instantly. Thus these were
installed in the arms as a backup. Their power is low and their
original purpose was limited to diversion, but because their beams
are capable of intermittent rapid fire, they can be a threat to
conventional weapons that lack E Carbon armor.
GN Shield: A shield with high strength constructed of E Carbon. No
current mobile suit weapon has offensive power exceeding the
strength of this shield. Because the Exia was expected to fight
mainly in close combat, this shield is fairly small. Also, so as to
increase the freedom of the manipulator, it is designed so that it
can be affixed directly to the arm.