He has the tail, it's just been painted black and is pretty flaky is all. Whoever had him last did a pretty poor job of customising him, including mauling the guns and painting them silver. I don't mind the colour changes since they're easy to fix, but the fact the gun barrels have had parts of them cut off is pretty aggravating. Seriously, who mauls a Metals X-9 fer crying out loud?

The tail and body can be repainted pretty easily, the hip/leg joints are easy to tighten up, but replacing those gun barrels is gonna be a nightmare.
X-9 was never really a grail of mine and I was quite happy with the CHUGUR Ravage for the Odieverse, but for 1050 Yen I wasn't gonna pass up the Metals version and now that I've got him I want to see him done justice dammit. If I can find a set of replacement X-9 barrels and/or weapons from another toy that can be modded into similar barrels I'll see if one of the good-at-customising crew here can fix him up and maybe even improve on him. If I try doing it I'll probably just make things worse.

If he was in halfway decent shape I'd leave him as is, but since someone's already given him a going over I figure I might as well get him fixed up properly and given a quality show-accuracy treatment.