M113A2/Definition

1979 set of cooling and suspension improvements to the M113 armored personnel carrier, and the advent of derivatives based either on an armored (e.g., (M125A1 mortar carrier and M741 "Vulcan" air defense vehicle) or unarmored (e.g., M548 cargo carrier and M667 MGM-52 Lance missile carrier, and M730 Chaparral missile carrier) M113 chassis