Had issue w my 870 express - pump was rubbing finish off left side of receiver. I called Rem CS and they sent me packing label to ship the gun back to them for free. Since I was sending it back, I respectfully requested some upgrades - install 1100 mid-sight bead & larger green florescent front sight. I even offered to pay for it. They did it all for free, even refinished the receiver and as a bonus, installed a jumbo head safety and included a white front site bead in case I wanted to change it up. All shipping & handling was billed to warranty. Very impressed. Always love it when a company exceeds your expectations.