Steel hose length for AM68 w/ flatline

[Brother Kain]

I haven't been able to find any website list a length for my gun setup, and I need to order one (I would like to get it when I get my gun). I haven't got my gun yet, so I can't just measure it. I figure someone here knows. My setup:

Automag68
TKO gas through grip
AGD flatline w/ stock D/F

Below is a picture of the gun and everything as I ordered it.

[Hexis]

You can just use the macro line that's on there. You would take the bottom line off, put the flatline DF on the grip, take the Macro Line fitting off the bottomline, and put it on the flatline.