This M106A2 has its trim vane deployed. When swimming, the trim vane would prevent water from coming over the M106A2's hull and swamping the vehicle. Behind the trim vane is a round access hatch, and to the right of this is the powerplant compartment front door. The mortar bridge and baseplate are stowed on the left side of the hull. This M106A2 is fitted with the T130E1 single-pin tracks. (Picture courtesy Armor Foto.)

For more images see Armor Foto: M106 Mortar Carrier.