The line of Riflescopes made Winchester Optics offer the same level of quality as Winchester firearms. These optics are available in a wide array of magnification ranges and have an unbeatable price. Each riflescope features fully multi-coated lenses and are nitrogen filled and sealed for dust, water, and fog protection. The internal mechanism boasts beryllium bronze springs and can withstand up to 800G’s of recoil. Features of the Winchester Supreme Riflescopes: Fully multi-coated lenses throughout the optical system. Excellent low light performance. Beryllium bronze springs. One-piece housing machined from tough A6063-T6 aluminum. Black anodized aluminum exterior. Designed to stand up to 800 Gs of recoil for standard & magnum rifles, and muzzleloaders. Nitrogen filled and sealed optical system for fog, water, and dust proof performance. Smooth fast focus eyepiece adjustment. Knurled power adjustment ring and turret knobs for a secure grip. Fingertip turret adjustment for windage and elevation. Zero reset turrets can quickly be adjusted to back to zero with a screwdriver or coin. Lens cover, cleaning cloth, user manual, and battery included winchester optics Winchester Supreme 6-18x50mm SF IR Riflescope WQ-RS-SPRM9-6-18X50SFIR