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) magnificationsSpecially formulated mult-coating provides maximum brightness clarity and contrastWater-resistant / Fogproof / Nitrogen gas-filledRubber-coated speed-focus eyepieceSpecially formulated multi-coating provides maximum brightness clarity and contrastMOA based BDC ReticleAgressive grip-machining on control surfaces for easy use with winter glovesProtective caps cover fingertip adjustable windage and elevation turretsAvailable with duplex reticle or MOA-based BDC reticleOne screw turret design for easy zero indexing (windage and elevation)Durable scratch resistant non-reflective matte finishField of view 8.8-26.77Eye relief 3.75-4.1080 MOA adjustment range100 yd parallax adjustment