The "proper piece" or the correct Google Apps (GApps) package for is typically identified by its release date in the filename, which was standard for CyanogenMod 10 (CM10) era devices. Recommended GApps Packages
GApps, short for Google Apps, are a set of applications developed by Google that are pre-installed on most Android devices. These apps include popular services like Google Play Store, Google Maps, Gmail, Google+, and more. GApps are not part of the open-source Android code, which is why they are not included in custom ROMs. official gapps for android 411 jellybean flashablezip