I have a new Glock 26 9mm and just got my CCW in California. I also have an older Glock 17 9mm, which is also on my permit. I know that since I have owned my 17 well before the 10-round magazine law existed, I can legally carry the 17 with the high-capacity mags I already own. Since the 26 has a 10 round mag, and my high-capacity mags also fit it, could I legally carry one of my high-capacity mags as a spare for the 26 when I carry it? Wanna kill these ads? We can help!