10 Best optics for AR 15s 2025 in the United States

The Leupold VX-5HD 3-15x56 riflescope is a solid choice for AR-15 users who want versatility and clarity for various shooting distances. Its magnification range from 3x to 15x allows for both close and long-range targeting, making it flexible in different hunting or shooting scenarios. The large 56mm objective lens helps gather plenty of light, which improves visibility in low-light conditions, such as dawn or dusk. The illuminated FireDot Duplex reticle is easy to see and helps with quick target acquisition, especially in dimmer environments.

One standout feature is the CDS-ZL2 system, which lets you customize elevation adjustments precisely to your ammunition and shooting conditions, reducing guesswork. The side focus parallax adjustment aids in keeping the target sharp and clear from any shooting position. At 2.14 pounds, the scope is moderately heavy, so it adds some weight to your rifle but feels robust thanks to its aluminum build. It’s also 100% waterproof, fogproof, and shockproof, meaning it can handle tough outdoor conditions without losing performance. The Motion Sensor Technology is a clever addition that saves battery life by turning off the illuminated reticle when not in use. However, it does not have night vision compatibility, which might limit its use in very low or no-light conditions.

This scope is suited for hunters and shooters who value precision and durability in a wide range of lighting and weather scenarios. Although it may be a bit heavier and pricier than simpler scopes, it offers features that serious shooters will appreciate.

The Trijicon ACOG 4x32 Scope is a well-regarded choice for AR-15 enthusiasts and those in need of a reliable combat optic. One of its standout features is the battery-free illumination, using tritium and fiber optics to automatically adjust brightness, ensuring clear visibility in various lighting conditions. Additionally, its rugged aluminum-alloy housing makes it exceptionally durable, capable of withstanding tough environments without losing functionality. The design allows for ‘both eyes open’ shooting, which is beneficial for quick target acquisition in close-quarters combat or hunting scenarios.

The scope offers a magnification of 4x, providing good clarity for medium-range shots. The bullet drop compensating reticle is calibrated for popular calibers like .223 and .308, allowing for accurate shooting up to 800 meters. This makes it a great option for users who want precision over long distances.

For serious shooters and military personnel, the Trijicon ACOG 4x32 Scope offers a robust, combat-proven optic that meets demanding requirements.

The HOLOSUN HS510C Multi-Reticle Green Open Reflex Sight is a versatile and durable optic designed for AR-15 rifles and other long guns. It features a robust aluminum housing with a titanium hood, ensuring it can withstand heavy use and recoil. The sight offers a 1x magnification and a 30mm objective lens, which is ideal for quick target acquisition without magnification. The Multi-Reticle System (MRS) allows users to switch between a 2 MOA dot and a 65 MOA circle, which is helpful for both precision and quick targeting.

One of its standout features is the Shake Awake technology, which conserves battery life by turning off the LED when not in use and instantly reactivating it with the slightest movement. Additionally, the Solar Failsafe feature ensures the reticle remains visible even if the battery fails, adjusting brightness according to lighting conditions. The sight is parallax-free with unlimited eye relief, making it comfortable to use for extended periods. Its compact size (3.3 inches long, 1.8 inches wide, and 2.3 inches high) and lightweight design (0.52 pounds) add to its usability without adding significant weight to the firearm.

The sight lacks magnification, which might not be suitable for long-range shooting. Additionally, while it includes night vision-compatible brightness settings, the sight itself does not have night vision capabilities. Users will appreciate the limited lifetime warranty, and its compatibility with firearms using a 1913 Picatinny Rail makes it versatile. The HOLOSUN HS510C is a strong choice for AR-15 users looking for a reliable, durable, and feature-rich reflex sight for short to mid-range shooting.