From close quarter missions to engaging mid-range targets the Firefield Barrage 2.5-10x40 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