:)The front sight is pressed on from what I have read. Plastic expands more then steel. I think if I wanted to remove it the first thing I would try, would be to stick it into boiling water for a few mins and see it it would just slide off.
I have a new Quest 1000 and the front sight does not cause problems when using a scope. I would just leave it to protect the barrel crown exc. But thats me.