Will it work as "dual fuel" in the pistol, as it does in the rifle?
the P'rod valve I can say that on co2 that gun will probably shoot real slow. The valve volume is small as compared to say a Disco valve and there isn't much room to open it up. If you want to try it you might pick up a bit of performance by opening up the trans port to .150" or as big as the trans hole in the barrel. The P'rod and the 1701P both use the same valve and from my prospective it's designed around being an air miser and not for flowing much co2.