I found this when I was surfing the web: http://www.waterblaster.net
How 'bout that? They supposedly can shoot up to 60 feet, they're made out of good quality parts, made in USA, and they seem to be marketed towards teens/adults. (At least the XLR is anyway.) The XLR costs $19.95 on Horizon Hobby, but I'm not sure about the MINI. They're also available in Europe.
I would really love to get one and try it out. They are syringe based blasters however, so you would need a bucket on hand if you plan on using one of them in combat. But if they can shoot 60 feet it's worth it.
I don't know if anybody knows about these yet, I think it's a new company. (I'm not sure though.) But I haven't seen any topics on this, so I'll post it anyway.



