The M870A2E1 is three axle Medium Heavy Equipment Transporter (MHET) is designed to haul AAVs and the 621B Scraper and is designed to haul a payload of 100,000 lbs. (50-ton) in conjunction with an LVS MK48/MK16 fifth wheel truck tractor, LVSR MKR16 tractor with reduced payload. The primary removable kingpin is 3.5-inch diameter with an alternate supplied 2-inch diameter kingpin. The M870A2E1 has a removable, hydraulically operated gooseneck for the front loading of equipment and is equipped with D ring tie downs and folding outriggers for wide loads.