The M16 illustrated here is ready for fire with the armor flaps hinged down on the sides and rear. The notches in the side armor to allow free rotation of the turret can also be seen. (Picture from Standard Nomenclature List G-102.)
The gunner's position inside the turret can be glimpsed here, as well as how much room in the passenger compartment is taken up by the turret. Ammunition chests were stowed behind the driver's seat, although none are present in this image. (Picture from Standard Nomenclature List G-102.)
Details of the rear of the gun mount are provided here. Four ammunition chests M2 fed the machine guns, and the hinged armor can be seen as well.
With the gun mount taking up so much room in the rear, the vehicle's fuel tanks were relocated to the front of the passenger compartment. The right-side fuel tank with its filler cap on top can be glimpsed towards the front of the vehicle.
Three seats were still provided in the driver's area. Stowage for spare ammunition chests can be seen behind the seats. From foreground to background, the floor-mounted levers are the front drive shift lever, the transfer case shift lever, the (very long) transmission shift lever, the parking brake lever (the only lever without a black knob), and the power take-off shift lever. The power take-off lever operates the winch: when pushed forward the winch reverses to unwind cable and when pulled to the rear the winch operates in forward speed to wind the cable. The vehicle's clutch was depressed before moving the power take-off lever, and when the clutch was released the winch speed was controlled by the vehicle's foot accelerator pedal.
The mounting of the front winch is shown here.
A closeup of the later, small demountable headlight is provided in this image. A marker light is mounted above the headlight. When the headlight assembly was dismounted, a plug chained to the mounting bracket filled the resulting hole, protecting it from debris. Half-tracks manufactured by International Harvester also used demountable headlights, but the brush guard was of a different design.
This MGMC M16A1 also illustrates features of the M3 half-track. The fenders are thick in cross-section, and the rear corners are sharp right angles. Notice also the late, double-coil spring-loaded idler wheel. The front bumper on this vehicle would be able to be fitted with the anti-ditching roller. This machine lacks the folding armor panels found on the custom-made anti-aircraft half-tracks, but the quad-machine gun turret was raised 6" (15cm) to enable the weapons to fire over the sides and rear of the half-track. The driver's armored door cover is folded down, and the armored windshield cover and folding gun shield have been removed from this vehicle. (Picture courtesy the Kenosha Military Museum.)
This MGMC M16A1 is fitted with the folding "bat wing" shields for the gun crew. There would normally be hinged extensions that could fold out on the sides, providing further protection. This vehicle lacks the notches in the side armor plates and folding armor flaps of purpose-built M16s.