The ECO 4x34 Scope is a great scope option that is well suited for field play as well as urban environments. There are several feature which set this item apart from other optics. Most notable are the built in green laser sight and NAV LED which are not seen on most scopes. The laser sight is great for quickly acquiring targets at close range without having to use iron sights or the scope itself. The purpose of the NAV LED is to provide enough light to navigate dark surroundings without having to use a blindingly bright tac light. The low powered lighting helps preserve night vision when used, and also makes it easier for the user's eyes see in the dark. The NAV LED can be used on either a red or white light setting. Built into the top of the scope is an iron peep sight and a small 1.75" picatinny rail which can be used for mounting additional optics (such as a micro-dot sight). The backup iron sights can me mounted to three different positions. The 12 o'clock top position or a 45 degree canted position on either the right or left side of the scope. The scope has a built in QD picatinny mount which is easily accessible by using the side lever. The green laser is, of course, fully adjustable for windage and elevation, as is the scope itself. The scope has a blue illuminated glass etched urban tactical reticle, optimized for quick target acquisition. There is also an electronic control panel for blue reticle illumination levels, green laser on/off, and NAV LED light cycles modes. This unit is operated by 1 CR123A Lithium battery, which is included.