What is the weight of the night vision goggles themselves?

The weight of night vision goggles can vary depending on the specific model and make, but a common range for standard NVGs falls between 18 to 24 ounces. The choice identifying 20.8 ounces fits well within this typical range, making it a plausible figure for many night vision goggle models currently in use.

When considering the broader context of night vision technologies, lightweight goggles are preferred for operational effectiveness, ensuring they do not hinder mobility or cause excessive fatigue during extended use. Therefore, the choice of 20.8 ounces represents a moderate weight that balances durability and functionality, aligning with the design priorities of manufacturers in this field.

The other options reflect unrealistic weights for night vision goggles; for instance, 22 pounds is significantly heavy for wearable equipment and would not be practical for any standard military or civilian use. Thus, 20.8 ounces stands out as a reasonable and likely correct choice for the weight of the goggles.