Elusive Blue-legged Slug Shooters are elusive

[Cenat]

Where can I go to farm the Railgun Moa? I need 20 of those morons to finish SOI. I wish I got the Grineer one but that would be hard to farm at the first part but easy on the second part due to a certain node on Ceres....ok I am going out of point. Where do you farm Railgun Moas? Europa? 

[Cyborg-Rox]

Europa is a good place to find them. Also, just a note. You don't have to be the one that kills them. Any person in your squad counts.

[(XBOX)R3d P01nt]

Do a mobile defense on Neptune and they should show up from the start.  After the objective is complete, just run around the map and continue to kill them.

[Telluric]

I had the Railgun MOAs as well. What I did was just go on a Survival mission on Jupiter, and waited about 10-15 minutes in for those little guys to show up.

Only took me a couple runs to get what I needed.