How should you aim your M240 at a target located only 50 meters away with the rear sight in the horizontal position?

The correct approach for aiming your M240 at a target located only 50 meters away, while having the rear sight in the horizontal position, involves utilizing the groove in the rear sight slide in conjunction with the front sight blade. This method allows for proper alignment and ensures that the sight picture is accurate for the relatively close distance.

When utilizing the groove in the rear sight slide, you can align the front sight blade within that groove, providing a clear reference point that enhances your aiming precision. This technique is especially effective at shorter ranges like 50 meters, where small adjustments can significantly affect accuracy.

Using the peep sight aperture, while beneficial in many scenarios, is less optimal in this particular context due to the shorter distance involved; it may not provide the same clarity as the groove in the rear sight slide. Similarly, aiming with only the front sight blade could lead to misalignment, making it harder to achieve an accurate shot. Aligning the rear sight directly with the target is not practical, as it does not facilitate the necessary depth perception and focus that the groove offers when paired with the front sight blade.