Bushnell Elite 4200 2.5-10x50mm Riflescope Rainguard HD, Fully multi-coated optics, Magnum recoilproof construction, one-piece hammer -forged tube 100% waterproof, fogproof and shockproof, Dry-nitrogen filled 1/4 M.O.A. or finer fingertip, audible and resettable windage and elevation adjustment, Special features, CR 2032 Battery Elite Bullet-Proof Warranty, "No Questions Asked" one- year replacement (U.S. only)