This is a very high quality holographic weapons sight which is solidly built. It is a large sight, using two AA batteries, so make sure that you have room on your sight rail for it. I have found that using this sight allows quicker acquisition and the ability to target with both eyes open thereby increasing your situational awareness and enhancing target ID. The only criticism I can offer is that EOtech does not offer any sight covers to protect this expensive optic, and you must shop for an after market product if you desire one.