I am going to try TruGlo' s Magnum Gobble Dot this year. It attaches to the rib via allen screws and has an adjustable rear sight. With these tight patterns I think it is advantageous to have a rear sight for reference. My only concern will be durability. I guess I will find out the answer to that in a month or so.
Lazy,
If you wanted to take a look at one go to
www.truglosights.com and look at their firearms sights. Your model for the Remington would be TG944A I believe.