It dosen't matter; Pick up a small can of pvc glue, I have primer. I'm going to Exotic after work then I have to get some metric screws, I can grab a small can of pvc glue and drop it and the primer off on my way home.
I glued strips of PVC together once with CA glue. It worked well, the pen is still holding together and that was several years ago. I roughed each piece up a bit wit fine sandpaper before gluing.