The EOTech HWS 512 Holographic Weapon Sight 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 Model 512 is EOTech's most popular HWS in their lineup. It is an operator-grade Holographic Weapon Sight built for close-quarter engagements with fast-moving targets. EOTech’s unique reticle patterns are a critical to delivering fast target acquisition and MOA accuracy at any range. EOTech reticles feature a 68 MOA ring surrounding a 1 MOA center dot allowing the shooter to quickly pick up and lock on a target. The most popular EOTech reticle; 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. The standard ring equates to approximately 68" (5'8") at 100 yards. The EOTech HWS 512 Holographic Weapon Sight offers multiple brightness settings offering quick adjustability to accommodate any shooting situation.