The Model XPS3 is EOtech's shortest and lightest night vision compatible HWS to date. Powered by a single CR123 lithium battery, it frees up additional rail space, leaving more room for rear iron sights, magnifiers, or a night-vision mount. Compact, durable, and versatile, the XPS3 delivers top-tier performance in a minimal footprint. Product Features Water Resistant: 33 ft. (10 m) depth Battery Life: 1,000 continuous hours at nominal setting 12 at room temperature Operating Temperate: -40 F to 140 F (-40 C to 60 C) Product Specifications L W H: 3.8" x 2.1" x 2.5" (96.5 x 53.3 x 63.5 mm) Weight: 9.0 oz (255 g) Mount: 1" Weaver or MIL-STD-1913 rail Windage & Elevation Adjustment: 0.5 MOA per click Night Vision Compatibility: Yes Brightness: 20 daylight settings 10 additional settings for Gen I through III+ night vision devices Power Source: 1 x CR123 battery Country of Origin: Made in USA