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A Glock 22 mag will fit a 19 so I would think a 23 mag will do the same. If you are thinking what I think you are thinking, you need to try it out a bunch of times in slow and rapid fire to make sure it cycles reliably. Also, not legal in competition.
Oh, it works but it's mag dependent. The pinned to 10 mags work but the made to 10 ones don't. I think this is where you're right. The wider lips and higher tension ejects the 9mm round at the slightest pressure.