The All Terrain Attack Pod (AT-AP), also referred to as the AT-AP self-propelled artillery walker and nicknamed the «sniper tank,» was a tripedal pod walker used for long-range artillery strikes by the Grand Army of the Republic during the latter part of the Clone Wars. During the Galactic Civil War, they were used by the Alliance to Restore the Republic and the Galactic Empire.

The All Terrain Attack Pod, also referred to as the AT-AP self-propelled artillery walker or AT-AP, was a small tripedal walker manufactured by Kuat Drive Yards and was developed from the All Terrain Personal Transport and the All Terrain Tactical Enforcer. The AT-AP had an angular hull that was situated above two multi-jointed legs and had a smaller, retractable third leg that was mounted in front of the two main legs, and was deployed to steady the vehicle when moving over rough terrain and to brace for the recoil when it fired its primary weapon. The AT-AP, as such, was well balanced and was no more vulnerable to stability issues than other bipedal walkers, despite its appearance. The AT-AP’s profile was stated to resemble that of the forward hull section of an All Terrain Tactical Enforcer.

The AT-AP’s primary weapon was a powerful long-range heavy mass-driver cannon that was located in the forward hull. The cannon launched a solid durasteel penetrator at hypersonic speeds over extreme distances, and was able to strike targets beyond visual range with proper targeting data. In order to keep the cannon accurate and precise, the AT-AP was equipped with a sophisticated targeting and data-relay suite that worked in conjunction with integrated recoil compensation and gyrostabilization systems. Because of its deadly accuracy displayed during the Clone Wars, it was nicknamed the «Sniper Tank» by its users.