Gun-Arm

The Gun-Arm is a special weapon which appeared in Final Fantasy VII, serving as Barret Wallace prymary weapon, also used by Dyne. In their most common incarnation, Gun-Arms are presented as a machine gun mounted to its owner's forearm, serving as a replacement for lost limbs, although in the game there are additional types of Gun-Arms, such as a laser weapon or a bazooka, some close-range variants, such as a Cannon Ball and a claw-like Scissor, or even two of Edgar's Tools from Final Fantasy VI, the Drill and the Chain Saw.

In Final Fantasy VII: Advent Children, Barret uses a new Gun-Arm, which can transform from an artificial limb into a large Gatling gun that features three firing units rotating around a central Mako gun.

In Dirge of Cerberus -Final Fantasy VII-, it is revealed that Shalua Rui was the responsible of making Barret's gun-arm.