I want to make a comment about companies that will replace or fix their products forever. In many ways it doesn't matter that much. A long time ago a friend of mine and I went goat hunting. He had a cheap scope but it came with a "lifetime" guarantee. We went goat hunting. Had to pay for a float plane, went camping for several days and really worked out pretty hard. Then he got a chance at a really big goat. His scope was fogged up. At that time the warranty wasn't worth a whole lot. But my rifle with a Leopold on it was worth a lot. I should have charged him to use my rifle.