Eotech EXPS3-0 Tan Sight EXPS30TanThe Eotech EXPS3-0 Tan Sight offers true 2-eyes-open shooting and provides an unparalleled targeting experience. The all-purpose EXPS2 features easy-to-adjust side buttons and a quick-detach lever. It has a transversely-mounted lithium 123 battery. The increased height of the EXPS provides iron sight co-witness access in the lower third of the viewing window. Whether you're using the sight for law enforcement or hunting, the EXPS series sights are the premier optics in the line. Features of the Eotech EXPS3-0 Tan SightGen I-III Night Vision compatibleEasy to adjust side button design7mm raised base offers iron sight co-witness access in the lower thired of the viewing windowQuick detach lever mount fits 1" Weaver or MIL-STD 1913 rail Water-resistance: 33 ft. Powered by (1) 3V 123 lithium battery600 continuous hours at nominal 12 setting at room temp.Product Specifications for the Eotech EXPS3-0 Tan SightFinish: Non-reflective Tan FinishReticle: 68 MOA ring w/ 1 MOA dotSize: 3.8" x 2.3" x 2.9" Wt.: 11.2 oz.