3-9*42 SFIRF cross density scope, applicable to M14, M21, S, R25 and other gun precision target shooting, magnification 3X-9X, diameter 42cm, 12cm exit pupil diameter, exit pupil distance 1.5cm, trajectory adjustment: 100 yards 1 clicks 1/10 inches, equipped with a red laser aiming, gunaiming lens with diameter of 30 3-9*42 thickened Siamese wide foot (22mm) support a pair of conjoined bracket is also equipped with many other functions can be assembled by fishbone, equipped with a battery, 3V (CR2032), the gun belongs to the military level, it has a waterproof, anti fog, anti low temperature, high temperature and other characteristics, with high strength and impact resistance force, red - light intensity adjustment, is a top for the best products for military use and hunting, is a stable quality, good sales of high-quality products.