Anyone make a good adjustable HPA anymore?

[gunman_2000]

If it looks like this: http://www.pbreview.com/products/reviews/630/ or this: http://www.pbreview.com/products/reviews/313/ (the one that I have) then its a centerflag adjustable tank.

thanks for the info guys...turns out, its the 420 SV reg. Turns out it has a slide check on it lol. So the reg works perfectly fine, and takes out any need to have an on/off asa. Pretty damn cool, but I think its set for LP from all the info I'm finding at the moment. And its not one of those two that FMO just posted....so I guess I'm outta luck there. Oh well, still a cool find.