EOTech 518-2 Holographic Sight Tactical Weapon Aiming Dot Red Dot – Open Box EOTech 518-2 Holographic Sight Tactical Weapon Aiming Dot Red Dot – Open Box Overview: Notes:That is an open box and in mint condition. May have minor scratches. The most efficient just were given better. The 518 runs on easy to find AA batteries but offers the entire features found in EOTech?s EXPS top of the line sight. With side button functionality you’ll be able to reduce rail space when partnering the 518 with an EOTech magnifier. The 518 may be compatible with the brand new drop-in Laser Battery Caps that EOTech designed to support aiming through the usage of visible and IR lasers. Features: Length/Width/Height: 5.6″ x 2.2″ x 2.9″ (142.3 x 55.9 x 73.7 mm) Weight: 13.8oz (391.2 g) Water Resistant: Submersible to 10 ft. (3 m) depth Mount: 1″ Weaver or MIL-STD-1913 rail Brightness: 20 daylight settings Power Source: Two 1.5 V AA batteries Supports lithium, alkaline, or rechargeable Battery Life: Lithium: 1,000 continuous hours at nominal setting 12 and room temp. AA alkaline: 600 continuous hours at nominal setting 12 and room temp.