10 Best sniper AR 15 scopes 2026 in the United States

The Trijicon 4x32mm ACOG is a solid choice for an AR-15 sniper scope, especially if you're looking for reliability in tough conditions. It offers a fixed 4x magnification with a 32mm objective lens, which provides a clear and bright image, good for mid-range shooting. One standout feature is its dual illumination system that doesn’t rely on batteries; it uses tritium and fiber optics to automatically adjust reticle brightness based on light conditions. This means you’ll have a clear green crosshair reticle in various lighting, including low light or night vision use, without worrying about battery life.

The Trijicon ACOG 4 x 32 Scope USMC Rifle Combat Optic for A4 offers a robust and reliable option for those looking for a sniper scope for an AR-15. The scope features a fixed 4x magnification, which is ideal for medium-range engagements but may not suffice for very long-range shooting. The 32mm objective lens diameter provides a clear and bright image, although it may not be as large as some other sniper scopes in the market which can offer better light transmission in very low light conditions.

The Leupold VX-6HD 3-18x44 Riflescope is a robust and feature-rich option for those seeking a high-performance sniper AR-15 scope. With its wide magnification range from 3x to 18x, it offers versatility for various shooting distances. The 44mm objective lens diameter ensures good light transmission, enhancing visibility, especially in low-light conditions. The FireDot Duplex reticle is illuminated, aiding quick target acquisition in dim environments, and the Motion Sensor Technology helps conserve battery life by deactivating the illumination when the scope is not in use.