10 Best sniper AR 15 scopes 2025 in the United States

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 scope's reticle, a red Chevron ranging reticle, is highly functional with bullet drop compensation out to 800 meters, making it suitable for precise aiming and long-range targeting. However, the 1.5 inches of eye relief is somewhat short, which could be a drawback for some users, especially those who use glasses or prefer a greater distance between their eye and the scope. One of the standout features is the battery-free illumination, which adjusts the brightness based on available light, ensuring that you are not left in the dark if batteries fail.

The rugged aluminum-alloy housing enhances durability and makes it nearly indestructible, a significant advantage for combat or rugged hunting environments. The Bindon Aiming Concept allows for both eyes open shooting, improving situational awareness. However, for those looking for more versatile magnification, the fixed 4x might be limiting. This scope is well-suited for military and tactical use, especially in medium-range scenarios, but may not be the best choice for users needing flexible magnification or longer eye relief.

The Leupold VX-5HD 3-15x44 riflescope is a solid choice for AR-15 shooters looking for versatile magnification and reliable performance. Its 3-15x magnification range offers flexibility for both close and longer-range shots, while the 44mm objective lens provides good light gathering for clear images in various conditions. The illuminated FireDot Duplex reticle aids in quick target acquisition and low-light visibility. One standout feature is the CDS-ZL2 turret system, allowing precise elevation adjustments with a push-button lock to prevent accidental changes, which is especially useful for shooters who need consistent zeroing. The side focus parallax adjustment helps maintain a sharp sight picture, reducing eye strain and improving accuracy. Eye relief is comfortable, thanks to the 30mm tube size, accommodating different shooting positions. Leupold's Guard-ion lens coating resists dirt and water, enhancing maintenance ease and clarity. Constructed from durable aluminum, this scope is waterproof, fogproof, and shockproof, making it dependable in tough field conditions.

It weighs about 1 pound and measures over 17 inches in length, which might be on the heavier and bulkier side for AR-15 setups where compactness and weight are critical. The scope does not support night vision compatibility, so it’s better suited for daylight or low-light use rather than full darkness. Supported by Leupold’s lifetime guarantee, this scope is ideal for hunters and precision shooters who value rugged construction and fine-tuned ballistic adjustments but can handle a slightly larger optic on their rifle.

The Vortex Crossfire II 3-9x40 is a solid choice for an AR-15 sniper scope, especially for hunters and shooters who want a reliable and clear sighting tool. Its 3-9x magnification range offers good flexibility, allowing you to zoom in enough for precision at medium distances without losing the wider view needed for quick target acquisition. The 40mm objective lens balances brightness and size well, providing a clear image without making the scope too bulky. The V-Brite illuminated V-Plex reticle brightens the center dot with battery power, making it easier to spot your target in low light conditions.

Eye relief is generous, and the scope's forgiving eye box makes quick target alignment easy without the need for perfect eye positioning. The fast-focus eyepiece simplifies reticle crispness adjustments, which is convenient when switching between targets. While the turrets are functional, they may not offer the most precise tactical adjustments for windage and elevation on the fly. Similarly, the lack of parallax adjustment means this scope is best suited for medium-range shooting rather than long-range precision.

Constructed from strong aircraft-grade aluminum, the scope is durable and capable of withstanding rough outdoor conditions. Its waterproof and fogproof design ensures reliability in adverse weather. At just 15 ounces, it adds minimal weight to your rifle. Additionally, the lifetime VIP warranty provides added assurance. This scope is an excellent, straightforward, and durable option for typical AR-15 shooting distances with good clarity and illumination.