The new GS Air tanks (the GS Air M) is in!

[Jeff Eaton]

Short and to the point:
It uses the same coils as the original. However, they've increased the liquid capacity and changed the airflow from a fiddly, ineffectual screw to an actual rotating ring

 

[Jeff Eaton]

I get an oldschool cartotank sort of vibe from its looks; I dig it