Offering a wide magnification range for close to mid-range shooting” the Presidio 3-18×50 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 3-18×50 includes a flip-up lens cap” a handy throw lever and one CR2032 battery