Itty Bitty Double FLEX V2

[jackal24]

Would this work on a Pegasus?

[clough42]

Would this work on a Pegasus?

Yes, I think it will fit the Pegasus. The back plate is different on the Pegasus, though, so you will need to print a compatible back plate. I have one available on Thingiverse here: http://www.thingiverse.com/thing:945613/#files

If you just want a stock plate, you want the NoCams version.

The only possible difference would be if the spacing of the X axis extrusions is different. Colin tells me it's the same, but it's easy to measure. My two i3v printers measure 59.2mm and 59.7mm across the outside of the two horizontal extrusions. If yours are close to that, the above back plate should work for you.