I've looked all over the place for the last 2 weeks looking for a Remington 870 Express Super Mag with a 28" barrel and a synthetic stock and cannot find one anywhere. I'm not asking anyone to search for me, but if you happen to know of a place around the Louisiana or Mississippi area that carries this model, please let me know. Or if you know of a place on the internet that will ship. Thanks all.

I would start at Academy sports and outdoors. They have several locations in Louisianna and Mississippi. They can usually order what you want if they don't have it in stock.

If not, try:

East County Guns

His prices are good, but you will have to get it shipped to someone with an FFL.