Thanks for all the replies gents. I think my search will continue then. One of the things I liked about it was the 20rounds in a mag. In some ways it remineds me of a tipx with a zeta. but smaller/more nimble?
I was wondering about modding potential for these (rapides/splatmasters/GZ1000) and and wondered if it would be possible to remove the pierce pin from the valve and replace it with a hole drilled and tapped for an NPT thread. My thinking was to go from that to an ASA thread making it possible to use a CCi 12gram changer in them. Not sure if this is possible as i've not seen the valve upclose.