Hey Bill, It came with the blade, handle, crossguard and the shaft, no pommel, or allen head screw, or scabbard..

RM: I believe the XM9 pommel cap was a standard US M7 which had a stepped hole drilled thru the end to accommodate the Allen screw, securing the pommel to the tang rod. I am sure this is an easy part to obtain, and anyone with a good drill press (or preferably a mill) could replicate what Phrobis did.

I am sure that they could, but if I could find an original one it would be better...

Rex,
I remember I saw somewhere pictures of your XM9 from the Camillus Cutlery, and I was finally able to find the topic
http://www.quarterbore.net/forums/showthread.php?t=1564
To give you my personal opinion I would follow Fred's suggestion about the pommell.
Chances to find an original machined M7 pommell are extremely scarce, and I believe that $1000+ (as the current auction price) for just a pommell and a scabbard is way too much.
P.S. Looking back at the pictures of your blade, I'm wondering why they installed the crossguard in the wrong way....

Well I fixed that... I put a regular buck pommel on it and an unmarked buck scabbard with it. The Scabbard is like the one that came with the 1991 USMC M9.