Thanks for the info guys, it is exactly what I was wanting. As far as the cost, hey, I work for the CITY, money is JUST NO OBJECT!
I think I might like rifle sights better myself, especially when considering the information from Mr. Dodson. I have never heard anyone say that before, and it makes sense. I was watching the Gunsite Tactical Shotgun video, and they act like ghost rings are so superior as to obsolete anything else.
Will look up the MMC site and see about cost and ease of installation. I have an 18 inch 870 rifle sights, and if I decide to keep it, I'll add a Speedfeed and tritiums of some sort. I am going to sell the Remington folding stock and mag extension, though, so if anyone wants it before I post in the for sale area, just holler.