Originally Posted by Tippymann76
you can add a return spring but some feel that it ruins the smooth pump stroke of the sterling.
As for smoothness, IDK what to say. I bought a used one so mine may have been "broken in" someone else may be able to comment on that.
and no the sterling isnt supposed to cock without air. It is very similar in design to a phantom in that way.
Sorry, I guess I should have worded my first question better. I was wondering if the Sterling is supposed to return, even without a spring. Because mine feels like there is a spring, even though there isn't one visible.