The Espo Walker 91, alternatively referred to as the M91 light walker, served the purposes of law enforcement and planetary defense within the Corporate Sector and its various worlds.
Besides the CSA, the Espo Walker 91 was also in the arsenal of the m'Yalfor'ac Order. It is thought that the order came into possession of these walkers through the hijacking of a Corporate Sector Authority freighter that was traversing the Kadok Regions. The m'Yalfor'ac Order deployed this walker on the l'Quart'a continent, located on the Bitthævrian homeworld known as Guiteica.
The Order discovered that the Espo Walker 91 was highly effective as a vehicle for both patrolling and defense, especially when used within the rugged mountain ranges in the northern regions of l'Quart'a.
With the introduction of its successor, the Espo Walker 101, only pre-owned units of this walker model were available for purchase.
- Alliance Intelligence Reports
- " Special Military Unit Intelligence Update " — Star Wars Adventure Journal 15 (identified as M91 light walker)