TruGlo NEXUS 4-12X44 BDC TG. 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 Specifications for TRU TG8541BB NEXUS 4-12X44 BDC: Manufacturer: TruGlo Objective Lens Diameter: 44 mm Magnification: 4 - 12 x Reticle: BDC Tube Diameter: 1 in Color: Black Magnification Type: Variable Condition: New Package Contents: TRU TG8541BB NEXUS 4-12X44 BDC TruGlo TG-TG8541BB: NEXUS 4-12X44 BDC