Offered for sale is an Elbit Falcon gunsight. This is the original "heads up display" ACOG red dot sight. It was developed and used in Israel by the IDF effectively. Although it is one of the older red dot holographic sights, some consider it to be one of the best as it is so well made...like a tank by some description. This unit is in the original box and sleeve with the adaptors for the normal or HBAR profile barrels. It mounts forward of the carry handle using the barrel adaptors for the A2 model or can be put on a flat-top Picatinny rail. It has a new lithium battery and functions perfectly. It was mounted on an HBAR A2 but was removed for a class with irons only. It has probably been used for about 200 rounds and otherwise was in the safe. The battery is very long-lasting because the brightness of the dot is controlled automatically or by manual. If left on, it will go to the lowest brightness and not drain the battery. The dot is around 3 MOA. The battery is a AA lithium. You can read about the Falcon gunsight here: http://www.ar15.com/content/products/sights/falcon/. Please PM or email with any questions. This is like new in the box. Shipping is included for CONUS. Shipping will be somewhat more to AL or HI.