An operator-grade Holographic Sight built for close-quarter engagements with fast-moving targets, the EOTech HWS EXPS3 delivers two eyes open shooting, 7mm raised base for lower iron sight access, and night vision capability. Side buttons and an adjustable, quick-detach locking lever for easy installation and removal. NIGHT VISION COMPATIBLE L X W X H 3.8” x 2.3” x 2.9” (96.5 x 58.4 x 73.7 mm) WEIGHT 11.2 oz (317.5 g) WATER-RESISTANT 33 ft. (10 m) depth MOUNT 1” Weaver or MIL-STD-1913 rail BRIGHTNESS 20 daylight settings10 additional settings for Gen I through III+ night vision devices POWER SOURCE 1 x CR123 battery BATTERY LIFE 1,000 continuous hours at nominal setting 12 at room temperature. COUNTRY OF ORIGIN Made in USA