When using the M4 iron sights, what is the proper alignment?

• A. The firer centers the rear sight in front of the front sight and keeps the target sharp.
• B. The firer aligns the tip of the front sight post in the center of the rear aperture and focuses on the front sight; the target should appear blurry.
• C. The firer aligns the front sight with the target and keeps the rear sight out of view.
• D. The firer aligns the front and rear sights so there is equal height and light between the sights.

Answer: (B)

With M4 iron sights, the proper sight picture centers on the front sight. The front sight post tip should sit in the center of the rear aperture, and you focus your eye on the front sight so it appears sharp while the rear sight and the target look blurry. This focus on the front sight gives you a precise, repeatable point of aim, and centering the post in the rear aperture ensures consistent alignment with the target. If you try to keep the target sharp or ignore the front sight, the aiming reference becomes unreliable and shooting accuracy drops.