The Sightron SI Hunter series of rifle scopes were built for the hunter that demands high quality reliable optics. Forget the bells and whistles that add cost but don't produce results in the field. Sightron holds a pristine track record of putting rugged dependable scopes in the hands of serious hunters, and the S1 Hunter delivers that same high quality product that hunters depend on. With the fully multi-coated lens system, all weather construction, positive finger adjustable 1/4 MOA windage elevation adjustment and fast focus eyepiece, hunters can confidently take the S-I Hunter on their next excursion. Quality optics deserve a quality warranty and that's why Sightron backs the SI Hunter with a Lifetime Warranty.