What is this trick?!?

I did this funny trick and i don`t know the name... If you know what it`s called please write it in the comments :)

[mateossh]

It's look like Kickback, but on Primo

[currensy]

thats pretty sweet man, should check out my primo trick on my new video

[skinlessboy]

It's a rail kickback though this is the first time I've seen in done without putting the foot in the middle.

[ravfreesk]

Primo kickback out or Primo flip underflip out

[networkskate]

i think it's primo flip underflip