15? Baby's first hi-cap. Call me when you roll with a 20 round P226 mag, or carry a Glock with 17 in the gun and a 33 in your pocket. VP9's come with 17-rounders now.
Yeah when I moved here in 2017 I got a bunch of 30 rounders for my ARs, but up to now hadn't done anything for my EDC.
Mostly because the 1st Gen M&P9c's "large" magazine was only 12. Didn't seem worth the bother.
But the M&P2.0 series 15-round mag fits, and with the XGrip thing, it's a good solution.