I never saw one of these when I was in uniform. Probably because I was not a Marine. Odd rig. AMC V-4.
https://boise.craigslist.org/cto/d/boise-m422a1-mighty-mite-jeep/7016118908.html
https://boise.craigslist.org/cto/d/boise-m422a1-mighty-mite-jeep/7016118908.html