I would doubt that holster wear would be covered by warranty, but I could be wrong. I'd recommend Blue Wonder Armadillo if you want to be sure there will be no rust. You can buy it from some forum sponsors and this stuff will protect the gun bettern than anything I've ever seen. If you arent familiar with it, it is applied much like a car wax, but it is much much more durable. For the price, you cant go wrong. A lot cheaper than having the gun refinished.