The AngelEye increases your situational awareness by giving you a convenient way to see what is going on behind you and to your side. Mounts to a standard picatinny rail on the side of your rifle. AngelEye will flex to facilitate a variety of viewpoints.
If you need improved visibilty on either side of you then two AngelEyes are better than one! Mount one on each side of your rifle for a simple and convenient way to improve awareness and visibility.