Jan 29, 2022 · Department of Defense (DODX) 68-foot heavy-duty flatcars. Buffer car, Cascade Green, nuclear cask car, Olive Drab, and Urethane Green. Road-number-specific lettering and details to match builder, period, and paint scheme. Die-cast metal underframes, wire grab irons, metal wheels, and Kadee couplers. $64.95. Spring Mills Depot, 443-744-0938, smd.cc