11/18/2015 2:11 PM
Loctite makes a great 5 minute clear epoxy in a convenient two-part tube that allows you to mix up whatever amount you need. From past experience, you'll get better adhesion if you prep both the flagstick end and the inside of the ferrule with 120 grit sand paper to allow a mechanical groove for the epoxy to set into. Also, make sure to wipe flagstick end and ferrule clean to remove sanding dust.
Good luck!