Yes, the Microstamping went into effect a few years ago. The Shield is currently the only M&P on the CA roster. We peasants can't buy anything "off roster" from an FFL (new or used). There are a few exceptions but they don't apply here. However, I can buy almost anything via a "private party transfer". So market forces here jack the prices up to stratospheric levels.

An M&P 2.0 will go for about $1000.