hey ive had my 597 for 5 years now and i want to take the front site off. i put a scope on when i first got it and never really cared about the front site ( it doesnt effect the scope picture) but it is hard on my case taking it in and out with that site sticking up. how do i take it off? do i just unscrew it and refil the hole with the screw out of the site or would it take a different probably shorter screw?