10 Best AR 15 scopes 2026 in the United States

The ATN Thor 5 LRF is a high-tech thermal scope designed to enhance shooting performance in low visibility conditions such as night or fog. It features a 4-16x magnification range suitable for various distances, and a 320x240 sensor resolution paired with a bright OLED display provides clear, detailed images with rich colors, making target spotting easier in any light. The built-in laser rangefinder (LRF) allows quick distance measurement to targets, improving shooting accuracy.

A notable feature is the advanced ballistic calculator that automatically adjusts aiming points based on environmental data, helping shooters achieve more precise shots without manual calculations. Users can customize and share reticles, adding both functionality and personalization. The scope also records HD video of hunts for later review or sharing.

However, the scope weighs over 2 pounds and is larger than typical AR-15 scopes, which may affect balance and handling on lighter rifles. The price and technical complexity might exceed the needs of casual shooters, and export restrictions limit its availability. For serious users focused on thermal imaging and precision shooting with an AR-15, the Thor 5 LRF provides advanced capabilities, while newcomers or budget-conscious users might find it more than necessary.

The Holosun 510C & HM3X combo is a versatile sight setup designed for AR-15 rifles, pairing a red/green multi-reticle reflex sight with a 3x flip-to-side magnifier. It offers a fixed 3x magnification through the magnifier, which is helpful for quick switching between close-quarters and longer-range targeting without changing optics. The reflex sight features an innovative LED system that can run up to 50,000 hours on a single CR2032 battery, reducing the need for frequent battery changes. Users can cycle through three reticle options—a 65 MOA circle with a 2 MOA dot, a dot-only, or a circle-only reticle—without needing to re-zero, providing flexibility for different shooting preferences.

Eye relief is generous at about 70 mm, allowing comfortable use without straining eye position. The sight is protected by a titanium alloy hood, adding durability and waterproofing down to one meter, which suits rugged field use and heavy calibers. It mounts easily on Picatinny or Weaver rails, common on AR-15 platforms. The magnifier is fixed at 3x, so those seeking variable zoom levels might find this combo limiting. While the reflex sight is compact and lightweight, the total package weighs around 1 pound, which is reasonable but might feel a bit front-heavy on some setups.

The included protective case and tools add value for care and maintenance. This combo is well suited for shooters looking for a reliable, battery-efficient reflex sight with a practical fixed magnifier, especially useful for hunting or tactical scenarios where quick target acquisition and some magnification are desired.

The Leupold VX-5HD 3-15x56 Riflescope is designed with precision and versatility in mind, making it a good fit for hunting enthusiasts. It offers a broad magnification range from 3x to 15x, which allows for flexibility in various hunting scenarios, from close-range to long-distance shots. The large 56mm objective lens ensures excellent light transmission, providing clear and bright images even in low light conditions. The illuminated FireDot Duplex reticle is another strong feature, enhancing target visibility and accuracy, especially during dawn or dusk hunting sessions.

The eye relief is comfortable, making it easier to maintain a full field of view without straining your eye placement. The CDS-ZL2 system is particularly noteworthy; it offers precise elevation adjustments and prevents accidental dial movements, which is essential for maintaining accuracy in the field. The Motion Sensor Technology (MST) is a smart addition, extending battery life by deactivating the illuminated reticle when not in use, and reactivating it instantly upon sensing motion. This scope is also built to withstand tough conditions, being waterproof, fogproof, and shockproof.

However, the scope's weight of 2.1 pounds might be a bit heavy for some users who prefer lighter gear. Additionally, while the side focus parallax adjustment is convenient, beginners might find it a bit complex to use initially. This riflescope is best suited for serious hunters who need a reliable and versatile scope that can perform well under various conditions.