Manufactured by Vengeance Incorporated at the same facility as the Brigand Light BattleMech, the Privateer is a much less complex piece of equipment, so much so that it has been said to look like an armed WorkMech.
This BattleMech was published in an official BattleTech product, namely the MekPak expansion for the MechWarrior IV: Mercenaries computer game. However, although official, computer games are not considered among the sources for Canon unless the information is expressly confirmed as canonical elsewhere.
By virtue of being an official albeit not positively canonical product, the game expansion and the 'Mechs presented therein including this one must be considered apocryphal.
MechWarrior IV: Mercenaries MekTek MekPak Expansion