The Bushnell R5 3-9x40 Illuminated DOA-LRH800 Riflescope includes an illuminated reticle for better visibility in low-light conditions. The HD Optical System ensures optimal light transmission, contrast, and resolution for clear and bright visuals. Fully-Multi Coated Lenses enhance image brightness and clarity with superior light transmission. The EXO Barrier maintains lens clarity by repelling water, oil, dust, and debris. With an IPX7 waterproof rating, this riflescope ensures the scope remains functional in wet conditions, protecting internal components from water.