Dial in targets at the range with ease and upgrade to the Sig Sauer® Tango MSR 3-18x50mm Rifle Scope. Capped elevation and windage turrets guard against accidental deviation in zero for superior zero retention, and the anodized aircraft aluminum tube features O-ring seals and gas-purged optics for reliable waterproof, and fogproof performance. Operating on a single CR2032 battery, this rifle scope comes equipped with multi-coated lenses with highly efficient SpectraCoat™ and LensArmor™ abrasion-resistant lens coatings for improved durability and clarity in harsh hunting, tactical, and defensive scenarios. Includes one-piece aluminum mount and lay-flat, flip-up lens covers. The high-performance optical system with low dispersion glass lenses delivers unmatched resolution, optical performance, and light transmission for superior clarity, while the integrated throw lever allows for quick changes in magnification while on the move. IPX7 waterproof.