Spectracoat: Highly efficient, ultra-wide broadband, anti-reflection lens coatings minimize reflection across the spectrum of visible light, while still permitting maximum light transmission through the scope; LensArmor: Getting the most durability out of the scope via this abrasion-resistant lens coating, to ensure your optic stays crisp, clear, and bright; Stealth ID: the industrial design of Sig Electro-Optics is based on their legendary firearms; deflection armor trapezoidal surfacing breaks up shape and pattern of the optic; Nitrogen filled for waterproof and fog proof performance (IPX-7 rated for complete water immersion up to 1 meter); Multi-position eye-cups; Close bridge design; HDX: Sig’s proprietary methodology of using High Definition (HD) and High Transmission (HT) glass for ultra-high resolution optical performance and maximized light transmission; LenShield: Sig’s proprietary Mil-Spec coating that sheds water, oil, and other undesirables to ensure a clear and unobstructed sight image at all times; Magnesium housing; Tripod mount compatible