Perfect condition, like new Armson OEG combat gunsight for AR-15 type rifles. This scope works in day OR NIGHT! Has Tritium lamp inside which provides illumination in darkness. This sight is the proven fastest sight aquisition type sight made! Keep BOTH eyes OPEN and ON the target! The florescent red dot will be imposed on the sight-picture. Used in military and law-enforcement around the world. Made from mil spec aluminum. This unit has the inegral M-16 / AR-15 carry-handle mount built in from the factory. The sight comes ready to mount on your AR-15 carry handle! VERY lightweight. If you have a carbine and want the ultimate compact, lightweight, fastest day/night combat gunsight that doesn't rely on failure prone batteries/electronics,,, look no further! These sell for upwards of $200. This one is only 1 year old and the Tritium lamp is guaranteed for 12 years. Easily replaced for $35 by Armson/Trijicon! From their website: Both eyes remain open for instant target acquisition, improved depth perception, and no loss of periferal vision. The brain instantly merges the dot and target. Constructed of heat treated aircraft grade aluminium alloy with anodized finish, Armson O.E.G. sights are built to withstand the most demanding use. Questions to me at: firstname.lastname@example.org $120 DELIVERED to anywhere in the 48 States.