Features like slip-zeroing turrets and a wire reticle are standard with the Truglo Nexus Series BDC Rifle scopes. They offer a bright and reliable option designed for the practical hunter, focusing on clarity, accuracy and a rugged use interface designed for successful hunting iin real-world conditions. Available in 3-9x42mm (TG8539BB) and 4-12x44mm (TG8541BB) magnifications Specially formulated mult-coating provides maximum brightness, clarity and contrast Water-resistant / Fogproof / Nitrogen gas-filled Rubber-coated speed-focus eyepiece Specially formulated multi-coating provides maximum brightness, clarity, and contrast MOA based BDC Reticle Agressive grip-machining on control surfaces for easy use with winter gloves Protective caps cover fingertip adjustable windage and elevation turrets Available with duplex reticle or MOA-based BDC reticle One screw turret design for easy zero indexing (windage and elevation) Durable, scratch resistant, non-reflective matte finish Field of view 8.8-26.77 Eye relief 3.75-4.10 80 MOA adjustment range 100 yd parallax adjustment