Botach's having a sale again on the PPQ mags. You have to sign in to see the sale. Also, Botach takes a while to ship, even before covid, so prepare to wait 2-3 weeks.
https://botach.com/walther-ppq-m2-9mm-17rd-magazines/
https://botach.com/walther-ppq-m2-9mm-17rd-magazines/