Styrka S7 Series 2.5-15x50 Illuminated Plex SF Riflescope, Black (ST-95040) All lens surfaces are coated multiple times with our SXL-MAX anti-reflective broadband coatings for maximum brightness, color, sharpness and image contrast across the entire visible light spectrum Blackened lens edges block stray light for reduced reflection and glare, enhancing image contrast Rugged erector tube system is precision machined from premium brass to maintain critical accuracy and point-of-impact in extreme hunting situations 30mm 6061-T6 aircraft-grade aluminum one-piece tube construction that is strong and durable Waterproof and nitrogen purged to prevent internal fogging