A 1 inch tube diameter, 4x zoom and incredibly versatile top-end magnification make this scope the perfect choice for an endless list of rifle-topping tasks. Exceptionally clear fully multi-coated optics and a superior build quality offered at a price point that will leave you scratching your head, in a good way! What&';s not to like? Answer: nothing! Included in the Box Sunshade Removable lens covers Lens cloth CR2032 battery OPTICAL FEATURES Fully Multi-Coated Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Second Focal Plane Reticle Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range, holdover and wind drift correction are accurate at the highest magnification. CONSTRUCTION FEATURES Tube Size 1 inch diameter tube offers a versatile blend of adjustment, size and weight for a wide variety of shooting applications. Single-Piece Tube Maximizes alignment for improved accuracy and optimum visual performance, as well as ensures strength and waterproofness. Aircraft-Grade Aluminum Constructed from a solid block of aircraft-grade aluminum for strength and rigidity. Waterproof O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments. Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures. Shockproof Rugged construction withstands recoil and impact. Hard Anodized Finish Highly durable hard-coat anodization provides a low-glare matte surface and helps camouflage the shooter&';s position. Adjustable Objective Adjustment for riflescope&';s objective lens provides image focus and parallax removal. CONVENIENCE FEATURES Fast Focus Eyepiece Allows quick and easy reticle focusing.