Sightmark Presidio 3-18x 50mm Rifle Scope - Offering a wide magnification range for close to mid-range shooting, the Presidio 3-18x50 combines elite performance with a sleek, stealthy appearance. Designed for shooters, the Presidio 3-18x features a first focal plane reticle calibrated for a maximum caliber of .338, red reticle illumination for contrast against targets and low light shooting, and fully multi-coated optics. Its capped, low-profile turrets produce clear, audible clicks and feature aggressive exterior 'knurling', to add a distinct tactile feel to give shooters greater confidence when adjusting their windage and elevation. With built-in zero stops, and a single piece, 30mm tube and aircraft grade aluminum construction, the Presidio is extremely accurate and durable. IP67 waterproof and dust-proof, the Presidio is ideal for a variety of firearms, including ARs and bolt actions rifles. The Presidio 3-18x50 includes a flip-up lens cap, a handy throw lever and one CR2032 battery. 6:1 zoom ratio 3-18x Magnification Capped, tactile, low-profile turrets Fully multi-coated optics First focal plane reticle Hard, anodized finish Red illuminated reticle Single-piece 30mm tube Aircraft-grade Aluminum Shockproof IP67-Rated dustproof and waterproof