For gunslinger in pvp I run right now year 2 ahamkaras spine. having 2 trip mines and 2 throwing knives almost all the time is amazing. But once the phage helmet comes in I might switch back and forth. Not sure. I don't blade dance any more. But if I had to pick a year 2 armor it would be the new hunter chest piece we are getting in this month. Night stalker depends on your pvp situation. If you are playing the smaller 3v3 content I suggest graviton so you can keep shade step and run keen scout. In the bigger game modes I'd run the sealed grasps. as 2 smoke nades are really hard to pass up. And with trials it's prefrence. But you can easily get away with running alpha lupi and running a trials/IB helmet for that extra super energy when ressing team mates.