The Bushnell R5 Riflescopes are versatile, well-rounded optics with options for virtually any shooting discipline. Available in multiple magnification ranges and lens sizes, the R5 Riflescopes all feature fully multi coated lenses for brighter, clearer images. All R5 Riflescopes also feature an EXO Barrier treatment on all exterior lenses to shed water, oils, dirt, and other debris. Additionally, the R5 Series features a fine-tuned side focus and boasts an IPX7 waterproof rating. Features of the Bushnell R5 Riflescopes: Available in multiple magnification ranges and lens sizes Fully multi coated lenses EXO barrier on exterior lenses Side focus Bushnell R5 3-9x40mm Illum Multi-Z EXO Black Riflescope w/Side Focus R5-3940S9