On the Fox, the extractor stem is much shorter than the stems on the ejectors, and hence will only be acted on by the stud at the hinge,
and the ejectors in the forearm iron will never touch it. Two extractor guns above, ejector gun below --
Same holds true for the Remington Hammerless Doubles, and I'd guess many others. Also, while Remington Arms Co. built many (maybe all) of their extractor Hammerless Doubles using empty of ejector parts ejector forearm irons, the mainsprings are different in extractor and ejector Remington Hammerless Doubles.
