Glock 23 Questions...

[GoingQuiet]

the glock 32 holds .357 sig, in which you can use glock 23 magazines because the casing of .357 sig is the same diameter of .40

However - the 357 followers make you lose a round. Stay with 40 mags for best overall compatibility.

[cebuvfr]

I have a Lone Wolf conversion (40-9) in my G23 and run G19 mags with no issues.

+1 for the lone wolf conversion(40-9) if you use factory ammo. I had several FTE with reloads though.

[Ubermcoupe]

[QUOTE=shortround1;6867318]...I have heard that Glock .40 cal mags can feed 9mm, maybe someone who's tried it can chime in. QUOTE]

Did that once by accident. Picked up and loaded the wrong one when I was shooting both @ a public range. worked for about three shots and than I had a FTE, thats when I figured it out. I would not recommend this.

just buy the different mags, you can always sell them here for a relativley small (if any) loss.
-or-
you can buy all three!
(c'mon, eventually you will, we all do, atleast that's what I did )