Last Spring I was at a gun show looking for extra mags for my model 96 (40 cal). A dealer tried to sell me a 15 rd factory mag for a model 92F (9mm) and told me that it would work with 40 cal ammo also. I didn't need to take the chance so I didn't consider it any further.
Since then, I have gotten curious about this since used (cheap) 40 cal mags aren't that common around my area but 9 mm mags are. I've borrowed a factory 15 rd 9mm mag to compare dimensions, etc. It's identical in size, shape, etc. to one of my 10 rd 40cal mags. It can fit 11 40cal rounds, fits into the handgun well, and I'm able to manually work the slide and feed/eject all rounds with no problems.
Has anyone here heard of this possibility?
I don't really need to resort to 9mm mags and have no current plans on trying to use them but it would be nice to know that resource is available if I did need them.