The EOTech 518 is a 1x magnification optical sight designed for close to mid-range engagements. Side button operation makes it ideal for use with a magnifier. The EOTech 518 has 20 daylight settings and can provide up to 1,000 hours of use with lithium AA batteries. The quick-release feature allows it to be used with 1" weaver rails and MIL-STD 1913 rails with ease.
Features:Quick-detach lever compatible with 1" Weaver and MIL-STD-1913 rail;CR123: 2,500 continuous hours at nominal setting 12 at room temperature.AA alkaline: 2,200 continuous hours at nominal setting 12 at room temperature.;20 daylight settings;Water-resistant to 10 ft.;13.08 oz