Rail for Z-Grip?

[Nick28]

What rail fits the z-grip? I just installed it on my new ule rail and the z dips down in the front leaving a gap between the rail and trigger frame.
http://www.me.com/ro/nick.hiance/Galleries/100005/Z-grip/web.jpg?ver=12582941920001
I would think an RT Pro Rail just because there seems to be no way I could fit a front asa on this. Not even a 15 degree look like it would fit.

[Madmarx]

You will need to have the wings milled off your Z to use it with that rail or get a classic style rail.