This militarized CJ-2A includes an M-416 trailer as James notes in his comment, not an M-100.
https://www.facebook.com/marketplace/item/1071425440025353
“This is located in Renton Washington. Price on this is very firm this includes the M- 100 mule trailer and a lot of military accessories. It is a great buy at this price and will be firm. I will not be answering any questions on this post as all will be directed to Scott (the owner)”
Its a M416 military trailer as shown in the photo. 1964-1969ish era trailer.
Thanks James. I zoomed past the trailer too quickly. I’ll update my comment.