UTG occular lens removal

I have a UTG 3-9X32AO and it has a tiny speck of debris stuck to the inside of the occular lens. The focus ring will not just easily screw off so I can't open it up and blow it out of there. It's not such a big deal that I want to send it back and wait 2 weeks to get another one, but it does bug me.

Is there a way to get that out of there? Yeah I know I might lose the nitrogen or whatever is in there, but I'm willing to risk that.
 
I'd like to get it cleaned out of there while it is somewhere that it can be gotten to. If the speck comes loose from where it is currently at it will probably show up again in a worse place.

I have had the turrets out of these scopes before, and truthfully I don't see how it could hold any gasses inside of it. Seems they'd easily leak right out around the turrets.