It was a grind, but i finally got every single optic, for every single sight in Black Ops 3 zombies. This topic is to give you an idea of what they look like in-game. It took me a grand total of 20,000 kills to unlock every sight(5,000 per optic while aiming down sights.)Like I said before, it was a grind. Here are the sights in order of when they are unlocked.

1st, the reflex.

Watcher



Head



Decay



End




Next up is the Thermal sight, which is most definitely the hardest one to complete.

Surrounded



Mystery Box



Jugger-Nog



GobbleGum




The next sight is the varix 3.

Spectral



Apothicon



Servant



Command




The final sight is the recon.

Not All There



Light



Chaos



Cursed (Seems a little off centered)




I hope Treyarch adds more weapon unlockables to zombies because i have all of them.