I've just spoke to my mate, he said the sellers name was 'gunsmoke-paintball', not sure about an e-mail address though. If he hasn't got any left on there send him a message anyway, he might be able to help you out.
ive got one laying around, picked up second hand a month or so ago and I have never used it, previous owner has used it but i cant see any external markings on it , make me an offer