The Vortex Viper Rifle Scope comes with features that are typically only included on scopes in a much higher price range. The optics are fully multi-coated and deliver beautiful detail and color while transmitting 95% of available light. Audible clicks allow for precise adjustments to windage and elevation and the tube is purged with Argon gas which eliminates internal fogging and extends the life of the optics. This is a wonderful scope for hunting. Protective lens covers and a lifetime factory warranty are included.