The 4-12x40 Revolution Riflescope from Redfield features a weather-sealed housing and 4-Plex crosshair reticle. This mid-range scope uses Redfield's Illuminator Lens System to produce high-contrast views that are bright throughout the zoom range. Resettable, finger-adjustable Accu-Trac windage and elevation turrets allow impact point adjustments in 1/4 MOA increments. The Rapid Target Acquisition eyepiece with lockable setting enables the shooter to maintain the diopter correction for their vision. Additionally, the nitrogen-filled aluminum housing is built to deliver fogproof and waterproof performance. Optical Performance - Magnification: 4-12x - Objective lens: 40mm - Main tube diameter: 1" - Eye relief: 3.7-4.9" - Accu-Range reticle: Circle-crosshair pattern with secondary aiming point for bullet drop compensation - Multicoated Illuminator Lens System Use and Handling - 1/4 MOA impact point correction - Accu-Trac finger-adjustable turrets - Rapid Target Acquisition eyepiece with lockable setting Construction Details - Nitrogen-filled for fogproof and waterproof performance - Weight: 13.1 oz.