The Burris RT-3 3x Prism Sight (Model BO300262) is a compact, fixed-magnification optic designed to bridge the gap between close-quarters red dots and low-power variable optics. Optimized for AR and MSR platforms, this micro-prism sight features a 33.8 mm objective lens and a fixed 3x magnification. Its standout feature is the Ballistic 3X™ Reticle, which is physically etched into the glass. This ensures the reticle remains fully functional as a black aiming point even if the battery is depleted, while also providing a crisp, distortion-free image for shooters who experience astigmatism. Operating on a single CR2032 battery, the unit features an automatic shut-off to maximize power conservation.

Key Features

• Etched Ballistic 3X Reticle: Offers an illuminated red broken circle and center dot for fast acquisition, paired with elevation and windage stadia lines for precise, longer-range holdovers.
• Astigmatism-Friendly Optics: The prism-based, etched-glass system prevents the visual blooming and distortion common with standard reflex red dot sights.
• Compact and Lightweight: Measures just 3.5 inches in length and weighs 8.8 ounces, minimizing the footprint on your rail.
• Integrated Base: Features a built-in Picatinny mounting base at a fixed height engineered specifically for modern sporting rifle platforms.
• Adjustable Illumination: Equipped with 7 brightness settings, including 4 daytime levels and 3 night vision compatible modes.

Product Specifications

• Magnification: Fixed 3x
• Objective Lens Diameter: 33.8 mm
• Field of View: 38.2 feet at 100 yards
• Eye Relief: 2.6 inches (66 mm)
• Overall Length: 3.5 inches (approx. 88.9 mm)
• Weight: 8.8 ounces (approx. 249.5 grams)
• Power Source: 1x CR2032 3V Lithium battery
• Mount Type: Integrated Picatinny base

Who is the Rt-3 3x Prism Sight Ballistic 3x Reticle for?

• Shooters with astigmatism — benefit from the Burris RT-3 3x Prism Sight's etched glass reticle, which completely eliminates the blurry distortion of traditional reflex sights while providing a clear, fixed 3x magnification and a 33.8 mm objective lens for a highly defined aiming point.
• Hunters and tactical shooters — require the Burris RT-3's Ballistic 3X reticle to rapidly transition from close-quarters out to 600 yards, utilizing the integrated holdover reference marks for bullet-drop compensation and a wide field of view of 38.2 feet at 100 yards.

Less suitable for: Long-range shooting applications extending beyond the 600-yard threshold, where a traditional high-magnification riflescope is required. It is also less suitable when mounting flexibility and a highly forgiving cheek weld are prioritised, as the constrained 2.6-inch eye relief makes a red dot sight with unlimited eye relief a more appropriate choice.