I have been a fan of Bushnell all my life, they offer a lifetime warranty, and do repair or replace the scope if it does go bad, which I have never had happen, but I do have a friend who has had one of his scopes replaced. I recommend Bushnell to many of my friends, I just recommended a Dusk & Dawn 4-12x40 Bushnell Banner to my nephew last week for his .17WMR.