Trainers, Niantic has removed the Rocket Radar from the in-game shop as announced on their official Twitter account.
The Rocket Radar is not available in the shop at the moment, as Niantic temporarily removed it.
Trainers, we have temporarily removed the Rocket Radar from the Shop. We will share an update when it returns. Thank you for your patience.
— Niantic Support (@NianticHelp) November 7, 2019
They didn’t share any details about why they removed the item or when it will be available again.
We’re investigating the case, so stay tuned for more info.