Ill toss in my opinion while waiting for the big bosses. Looks legit to me. Shape and font look good.
May have been a special order for some group? Maybe it was for a class @ the farm. Its hard to tell with the reflection, but the serrations look like those on my 6
This particular one was listed on NW Firearms: https://www.northwestfirearms.com/threads/esee-4-combat-rescue-desert-tan.236635/ From the seller: "These are military issue (Air Force), Combat Rescue "Edition". I can't find this particular one for sale anywhere..."
Appears to be a AirForce ParaRescue (PJ) version.... that was probably custom ordered and he probably shouldn't be selling it... FYI: The feet would normally be green.