You get what you pay for - ATN MO4 Night Vision Scopes MO4-1 (Gen 1) NVMNMON410 (11171)

This unit is a good entry level NVD. But if you are expecting video game style night vision, forget it. Without the IR illuminator switched on, it only gives you slightly better vision that the naked eye. The built in IR illuminator is limited in range to less than 100 feet and it has a narrow field of view. The adjustable beam is also a bit average. I'm thinking of buying a "Da Torch" IR illuminator or the IR-100 from night vision UK to make it more useful at longer ranges.
Pros: relatively cheap
Cons: short range infrared illuminator

This review was written in the old system and had content requirements that are different than reviews written today.