Eotech 512

Never used brand new mounted on gun never left the safe.   

Includes original packaging which is a plastic holder box

I don't have a use for it.  

Here is a description from the manufacturer.

Lightning fast target acquisition and reliable toughness make the 512™ our most popular Holographic Weapon Sight (HWS) without night vision compatibility. Available in black for the tactical/recreational shooter. Powered by two AA batteries. Featuring buttons located on the rear with easy access for both right and left hand shooters and brightness settings for dawn-to-dusk hunting as well as competitive shooting.