The XPS2 is the non-night vision version of our shortest and lightest HWS to date. Powered by a compact CR123 lithium battery, it frees up valuable rail space for rear iron sights or magnifiers. With water resistance up to 10 feet, the XPS2 is the ideal lightweight, compact option for maximum versatility on your platform.Specifications and Features: L x W x 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: No Brightness: 20 daylight settings Power Source: 1 x CR123 battery Country of Origin: Made in USA