This is a ELBIT FALCON Optical Gunsight Mark II made by the Advanced Technology Center in Haifa, Israel in the 1980’s. It is a “Dot Sight” designed for the M16 and AR15 rifles. For a very complete history and description of this sight, go to a technical paper by Steven J. Greenwald at
This one is new in box (never used) and has the original Instruction book The 3.6 volt lithium, AA size battery (not installed) is discharged due to age. It is serial number 0200537. Add $18. for shipping and insurance.