If the stun gun is the one with this inventory icon (if the attachment worked) then yes, else, it's not in the box anymore
The inventory image is that it looks like a fat pregnancy test, only way I can think to describe it
Yep. Definitely a bug. I reverted back to a prior save, got the stun baton again and now it is being equipped when I approach a robot.
I'll try to replicate the bug again and will update.
Tried a couple times now and haven't managed to replicate it. I have a screen shot still that proves there's an issue here, I'm just unsure of how to replicate it, so I'll leave it to Frictional whether they want to investigate.