Do I Need Iron Sights with a Red Dot on My AR-15?

In the world of AR-15 customization and optimization, the debate between using iron sights in conjunction with a red dot sight is a prevalent one. Many shooters wonder if the addition of iron sights is necessary when a red dot is already in use.

Understanding the Role of Iron Sights and Red Dots

Before diving into the necessity of iron sights with a red dot, it's crucial to understand the roles these components play. Red dot sights offer quick target acquisition and an easy aiming process, especially in low-light conditions. Iron sights, on the other hand, serve as a reliable, battery-independent aiming method that's been used for centuries.

The Case for Iron Sights with Red Dots

Reliability and Backup: One of the most compelling arguments for maintaining iron sights alongside a red dot is reliability. Electronic sights can fail, whether due to battery issues, damage, or environmental factors. Iron sights provide a fail-safe backup, ensuring you're never without an aiming solution. As discussed on Quora, even if your AR-15 has a front sight, aligning it with your red dot can offer a seamless transition should your primary optic fail.
Co-Witnessing Benefits: Co-witnessing refers to aligning your iron sights with your red dot sight, allowing for simultaneous use. This setup, often debated on forums like Reddit and AR15.com, offers several benefits, including improved accuracy and the ability to verify the red dot's zero. Co-witnessing can be either absolute, where the iron sight picture aligns directly with the red dot, or lower 1/3, where the iron sights are visible in the lower third of the optic's window, providing a clear view of the target through the red dot.
Training and Versatility: Iron sights can play a crucial role in training, especially for beginners. Learning to aim with iron sights teaches fundamental shooting principles that are transferable to any sighting system. Moreover, in scenarios where precision shooting at longer distances is required, iron sights can offer an alternative aiming method that some shooters prefer.

Counterarguments and Considerations

While the benefits of combining iron sights with a red dot are clear, there are counterarguments worth considering. Some shooters find that iron sights clutter the optic's field of view, potentially hindering quick target acquisition. Additionally, the added weight and space taken up by iron sights might be a concern for those prioritizing a lightweight, streamlined setup.

Expert Insights

Experts and enthusiasts on platforms like Railscales emphasize the importance of personal preference and mission-specific needs when deciding on iron sights. The consensus is that while not strictly necessary, the inclusion of iron sights alongside a red dot sight offers an added layer of preparedness and versatility that many find invaluable.

Conclusion

Do you need iron sights with a red dot on your AR-15? The answer largely depends on your specific needs, preferences, and the scenarios in which you anticipate using your rifle. Iron sights offer a reliable, versatile backup to red dots and can enhance your shooting experience through co-witnessing and training opportunities. However, the decision should be tailored to your unique situation, considering factors like reliability, versatility, and personal preference. Ultimately, the choice to integrate iron sights with a red dot sight on your AR-15 should align with your shooting goals and the demands of your shooting environment.