The Browning M2 .50 Caliber Machine Gun weighs 84 lbs without mounting brackets or ammunition. Just the receiving group probably weighs 40 lbs. The suspiciously-cropped posed photo of a petite female Marine makes one wonder if she is supporting the entire weight with her hands.
Also the truck behind the Marine looks more like a MK25 Cargo Truck than an “MK48 Logistics Vehicle”.