If so, it is the last zapper skin I need, but the zapper bribe says I've already collected all the skins I don't have yet. So, do I pay a visit to the Rift to get the Rift skin, or is this a glitch?

It's obtained from the Rift, not the Zapper News post with user info about how they unlocked it

Thank you for clearing things up. I'd thought I'd ask if this is the case, now, I just need to now how to get it from the Rift.