The Elcan Specter DR is a high tech optic with variable power that is designed to be adaptable to any tactical situation. This sight has a huge field of view and long eye relief allowing the user to quickly acquire their target. Unlike zoom scopes, the Elcan sight can switch between 1x and 4x zoom with the switch of a lever. The eye relief is identical on both settings, making the transition seamless. The illumination is adjustable to five different settings and can also be switched between a simple dot or full cross-hairs. This optic also has a lever lock feature making it easy to detach and reattach to any weaver/picattiny rail. Lastly, the top of the optic has built in iron sights, should there be a situation where they are better suited. If you're looking for the ultimate optic, this is it!