Additionally, Dahl also produces the Sabre Turret used by Axton. They also established Mercenary Day, where all mercenary operations are free.
Dahl used unpaid convict labor for its mining operation and when they left Pandora due to Atlas sending the Crimson Lance after them, they simply set the convicts free, resulting in the formation of various bandit factions. They were mining Eridium, which according to Tannis was 'lucrative'.
This is most likely the remains of a promotional deal offered during Pandora's short-lived 'gold rush' era.
