German Precision Optics GPO PASSION 4-12x50i Illuminated Riflescope R360, Color: Black, Tube Diameter: 1 in This entry-premium, 1-inch line of riflescopes packs incredible features into small, compact, and versatile optics, with premium features like quick-adjust turrets, fast focus ocular, and generous eye relief. PASSION 3X is sure to be your workhorse that transforms a hunt into a harvest. 1-inch main tube. Excellent eye relief. 1/4 MOA CCW rotation. Fast focus ocular. Metal turret caps. GPObright lens coating technology. iControl illumination. Double HD objective glass technology. The iControl illumination assures users that they always have a live battery when most needed. Automatically powers down the illumination when the electronic module has been stationary for more than 3 hours. Offers bright, fiber optic technology. Alerts users when the battery has only 15 percent remaining battery life. Specifications for German Precision Optics GPO PASSION 4-12x50i Illuminated Riflescope: Color: Black Magnification: 4 - 12 x Objective Lens Diameter: 50 mm Tube Diameter: 1 in Reticle: German #4 Illuminated Reticle Focal Plane: Second Focal Plane (SFP) Eye Relief: 2.54 in Exit pupil: 4.2 - 13 mm Adjustment Click Value: 0.25 in at 100 yds Field of View, Linear: 27 - 9 ft at 100 yds W/E Travel at 100 Yds: 127 cm at 100 m Parallax: 100 m Length: 13.2 in Width: 2.4 in Height: 1.7 in Weight: 18.2 oz Finish: Matte Included Accessories: Bikini scope cover, Cleaning Cloth