Remington XCR rifles have a "Trinyte" finish. So far mine seem impervious to crappy weather conditions and we certainly get our share around here...

http://www.remington.com/products/firearms/centerfire/model-700/model-700-xcr.aspx

If I actually get the trigger wet enough that I'm worried about rust I use <gasp> WD-40 which never let me down when all I could afford was beat up old blued guns that wanted to rust when it rained a hundred miles away. LOL

$bob$

Many who have freedom have no idea where they got it....