From close quarter missions to engaging mid-range targets the Firefield Barrage 2.5-10×40 Riflescope is the ideal ready-for-anything optic featuring a 55gr .223 bullet drop reticle with a knob for elevation adjustments out to 500 yards. Built reliable for the long haul IPX4 waterproof Barrage Riflescopes boast an aircraft-grade 6061-T6 black anodized aluminum tube and 2 piece mount design. While Barrage Riflescopes are deigned to handle your toughest engagements it’s the Barrage’s fully multi-coated AR green scratch-resistant anti-reflective glass precision illuminated red/green Mil-Dot reticle and 100-hr battery life that get you on target and keep you there even in low light. – 2 piece mount – 2.5-10x variable magnification – Mil-dot reticle – Red/green reticle illumination – Precision windage and elevation adjustments – Reliable IPX4 waterproof design – Long-lasting 100-hr. battery life – Battery Life: 100 – Battery Type: CR2032 – Battery Voltage V: 3 – Body Material: Aluminum – Diameter Exit Pupil: .63-.16 / 16-4in/mm – Diameter Eyepiece: .90/23 – Diameter Objective Lens: 40 – Diopter Adjustment: +2 to -2 – Elevation Range of Adjustment: 110 – Eye relief (in/mm): 2.36-2.17 / 60-55 – Field of view ft@100yd: 34.86-11.53 – Field of view m@100m: 11.6-3.8 – Finish/Color: Matte black – Focal Plane: Second – Fog Proof: Yes – Height (in/mm): 3.35/85 – Illuminated (yes/no): Yes – IP Standard: IPX4-weatherproof – Length (in/mm): 8.07/205 – Lens Coating: Fully multi-coated – Magnification: 2.5-10 – Material Lens: Glass – Maximum Recoil: .308 – MOA Adjustment: 1/4 – Mount Type: Weaver/Picatinny – Operating temperature F/C: 0 to 120 / -17 to 49 – Parallax free @ yds: 100 – Reticle Brightness Setting: 0-5 – Reticle Color: Red green and black – Reticle Type: Mil-Dot – Shockproof: Yes – Sunshade: Yes – Waterproof/Nitrogen-filled: Yes – Weight oz: 17.7 – Width (in/mm): 3.15/80 – Windage & Elevation Lock: No – Windage Range of Adjustment: 110