As quoted from Mechwarrior 4: Mercenaries...

CLASS: Inner Sphere Assault

ARMOR TYPE, TONNAGE: Reactive, 13.0

INTERNAL STRUCTURE: Standard

MAX SPEED (KPH): 65

GROSS TONS: 90

WEAPONS:

    Med Laser (4)
    LRM 10 (2)
    Ultra AC 2 (4)

COMPONENTS: None

JUMP JETS: No

FIELD NOTES: The Mauler is the Federated Commonwealth code name for an assault ’Mech developed by the Draconis Combine Mustered Soldiery (DCMS). The Mauler is primarily a long-range harasser, delivering significant damage from a distance over an extended period of time. However, it can also be reconfigured to inflict massive damage quickly when slugging it out in close combat with ’Mechs of comparable tonnage.