These types of sights aren’t used to shoot groups, but they are used a lot in combat. In combat, it is unwise to assume the enemy will expose their entire body as a target. Instead, you only get a shot at whatever isn’t hiding behind cover. Not knowing exactly where your bullets are impacting is a big problem.
I’ve always liked the EOTech and carried one overseas when I was in the U.S. 3rd Special Forces Group. I found them to be very reliable and durable sights. The batteries don’t last as long in an EOTech as they do in some of the red-dot sights, but it is a small price to pay for having a large viewing screen, highly visible reticle and the fastest times to get a rifle on target.
EOTech EXPS2 Green
Dot Size: 1-MOA dot with 65-MOA circle
Length: 3.8 in.
Height: 2.9 in.
Width: 2.3 in.
Elevation Adjustment: .5 MOA
Windage: .5 MOA
Battery: CR123 (approximately 600 hrs.)
Weight: 11.2 oz.
Eye Relief: Infinite
Manufacturer: EOTech, eotechinc.com