Front and rear sight advise

[1winnen]

I have a Mossy 500 with the 20" barrel and longer 7 round mag tube. I currently have a green laser rifle sight mounted on top via a picatinny rail. I am considering changing the laser out for fixed front and rear sights but unable to find any that will work without doing some gunsmithing on it. I have one last idea. Does anyone know if Mossberg 500 12g Factory Ghost Ring Rear Sight and a Snap-on Fiber Optic Universal Front Sight For Shotgun Barrel 12/20 Ga would work together or like I said before just stick with my laser mounted rifle sight.

 

[1winnen]

Please disregard my last post. These aren't going to work.

 

[Bobster]

Not trying to be a grammar nazi, but "advise" is a verb or action and "advice" is noun or thing.