DESCRIPTION The HWS 512™ is perfect for anyone who wants fast target acquisition, reliability, durability, and the anyplace availability of AA batteries without the need for night-vision compatibility. The 512 is our most popular HWS in the lineup. EOTECH One Dot ReticleOur most popular reticle offered, the 68 MOA ring with 1 MOA dot provides three usable aiming points. The aiming points above are based on the following load: .223 cal. 62 gr. 2,900 vel. When using other loads and calibers, the operator will have to establish the ranges associated with the aiming points. When using a shotgun, the 68 MOA ring can be used to represent shot patterns but will vary based on choke and shell selection. For ordering this reticle, the model codes will end in -0. SPECIFICATIONS Dimensions 5.6" x 2.0" x 2.5" (142.2 x 50.8 x 63.5 mm) Weight 11.5oz (326 g) Water Resistant 10ft. (3 m) depth Mount 1" Weaver or MIL-STD-1913 rail Windage & Elevation 0.5 MOA per click Brightness 20 daylight settings Powersource 2 x 1.5 V AA batteries - Supports lithium, alkaline or rechargable Battery Life Lithium: 2,500 continuous hours at nominal setting 12 at room temperatureAlkaline: 2,200 continuous hours at nominal setting 12 at room temperature Operating Temperature -40°F to 140°F (-40°C to 60°C) Country of Origin Made in USA INCLUDED IN THE BOX HWS 512™ Quick-Start Guide Warranty Card 2x AA Alkaline Batteries