Easiest way to replace spring on 2.5?

[cocacola31173]

My spring came out of one of my extension caps and was wondering what is the easiest way to put it back. Its not worn out just popped out on me.

Thanks!

 

[TFL!]

Grip it on one side with a needle nose and screw it in counter clock wise I belie

 

[jwbnyc]

They screw in clock-wise.