Meopta Optics MeoStar 3-12x56 Rifle Scope, Illuminated 4K Reticle - 526060 Premium grade precision optical system is fully multi-coated with MeoBrite 550 Ion Assisted lens coatings for 99.8 percent light transmission One piece, aircraft grade aluminum alloy 30mm main tube is CNC machined from a single billet and "ELOX" anodized for an incredibly durable, scratch resistant, non-reflective Adjustable objective lens delivers parallax free performance for precise shot placement at virtually any distance Nitrogen purged and sealed for a lifetime of waterproof, fogproof and shockproof reliability Second focal plane reticle