Qiraji battle tank mounts

Qiraji battle tank mounts are quadrupedal insectoid mounts.

Ahn'Qiraj drops
Most Qiraji battle tank mounts are rare drops in the Temple of Ahn'Qiraj. They come in several colors: blue, red, green, and yellow and can only be used inside the instance. These mounts require Apprentice riding skill (75). Originaly, only these mounts were allowed to be used inside the Temple of Ahn'Qiraj, and thus if a raid member could win the roll for one they would have a distinct speed advantage.

The red battle tank is considerably rarer than the other three varieties, and awards a Feat of Strength.

Legendary battle tank
There is also a, which can only be obtained during the War of the Shifting Sands. It requires Journeyman riding skill (150). It is usable outside the instances, thus rare sightings of these mounts outside Ahn'Qiraj are possible.

Archaeology finds
There is also the Scepter of Azj'Aqir‎, which can be used anywhere ingame. It is a rare Tol'vir artifact, and requires Archaeology (450) to find and create.