Likely because whoever makes these kinds of decisions benefitted from the switch somehow.Last I knew, my county's deputies were issued G17's at the academy. Lately all I'm seeing them with are P320's. Same for AZ F&G. My town still issues Glock but they went from 40 to 9, and the town a country mile over went from G21's to G17's. Heck, we've even got a town a few country miles over that issues the G20. Interesting decision I'd love to hear why it was chosen over the others.