I just got one of these (from the first run) from a fellow member, and upon pieces it together, I noticed something strange. There is a ring in the main body section, near the neck, that appears to be jammed in at an angle. This is preventing the rod from going in far enough to be flush with emitter. Did anyone else experience this? Does anyone know what this might be? I tried with moderate force to remove it to no avail. But I don't want to force it too much if it's supposed to be there...