XPosed Module, get Xposed Installer.
This module has to be used in combinaton with µg GmsCore to enable Google Cloud Messaging (GCM), location services and more. Install latest GmsCore, FakeStore(or Blankstore) and this module, dial in your phone app *#*#CHECKIN#*#* to register GCM and start using your Gapps-free device as usual. For additional information visit the Github Source code page.
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.Download F-Droid