Please find the attached pictures and a recommendation for you!
"The Remington 870 Express has a parkerized finish that is notorious for rusting if not properly (and often) taken care of. I ended up travelling for work and was gone for several months. Needless to say, the finish on my 870 did not fare well sitting untouched under the bed. That time away left one side of it badly rusted. After many coats of CLP and brass brush scrubbing, I was able to remove most of the rust but the damage had already been done. Remington quoted an outrageous price to have it shipped and the parkerized finish re-done, several other companies also quoted high prices and long turnaround times. Luckily, I stumbled across Alternative Coatings and learned about the many benefits of CeraKote. Tim was a joy to work with, had just the color I wanted, and made the entire process quick and painless. His price and turnaround was better that competitors I had contacted. After receiving my refinished firearm, I was very satisfied with his outstanding work. He coated my 870 and two barrels in a tactical grey finish, which looks great contrasted against my black stock and forend. I am a very happy customer, and would recommend others to his business. This time around, I am sure this finish will stand the test of time!"
-Nick from Dallas Texas.