Does not come with optical mount - Night Optics Mil Spec Night Vision Head Mount

You will also need to purchase the flip up mount that screws into your NOD - which is an extra $90+. This might be obvious to someone familiar with these mounting systems but they should advertise it - at least list it as a related accessory. But they don't even mention it in the description. Other than that seems to be well constructed and has easy eye relief adjustment.