CP 48/45 with standard ninja reg. Comes with thread protector. Hydro sticker was damaged by the previous user so I put a new layer of epoxy over it. No dings, no leaks. Last hydro'd 08/12, so good for 4+ years.
$100 paypaled and shipped. $5 off with a purchase of a barrel cover.
If you're going to offer a lower price than what I'm asking, please show me a comparable listing that I should beat.