Is this guy for real?

[ChipS]

Looks legit to me. I'm not aware of anyone humping trigger housings

Neither am I. This guy appears to me to be very legit - offering more detailed specifics on his item than 99% of other listings. It is what it is and he makes sure you know exactly what you are buying. I can't ask for any more than that. Why would anybody hump an M2 housing? I am convinced these things are arsenal upgrades of real USGI WWII M1 housings that have been warehoused for 50 years and I'm surprised you don't see more of them for sale than we do. JMHO