Holosun - HS403A Parallax Free Red Dot Sight (Up to 50000hr Battery Life)

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Prices last checked August 20, 2026 across 1 retailer.

No more bump for the battery! The PARALOW HS403A Red Dot scope has no external battery housing. The battery is hidden in the base where is will rarely need to be changed. This elegant design allows the scope to be simply a tube, allowing the maximum field of vision. Aiming with both eyes is now just a reflex and allows you to have maximum situational awareness. This sight includes 50,000 hour battery life, is parallax free, and has a durable PEO/MAO finish. Add to this an auto wake feature that automatically turns on the scope when it is moved and an adjustable 8 hour auto-shutoff. This scope comes with two mounts, a low profile and a AR height lower 1/3 mount. Holosun HS403A Parallax Free Red Dot with (Up to 50000hr Battery Life) Designed for day and night use New advantage technology LED allows 50,000 hours of operation on one CR2032 battery 2 MOA on dot size Reduced training time and ammunition Unlimited field of view Parallax-free with unlimited eye relief Unaffected by extreme weather conditions Durable and reliable construction No hazardous materials used No laser emission that could be harmful to your eyes Press button brightness setting. Increased aiming confidence. GENERAL DATA Parts No. HS403 UPC 760921087305 Principle Reflex collimator sight - red dot sight OPTICAL DATA Light source LED (Light Emitting Diode) totally eye-safe wavelength: 650 nm red light Red Dot Size 2 MOA -- 1 minute of angle = 30mm at 100 meters / 1.04 inch at 100 yards Parallax Parallax free: No centering required, aiming with red dot anywhere inside window. Eye Relief Unlimited Night Vision 3 brightness setting for night version, Setting 1, 2, 3 is for night vision, From setting 4 to 9 are day time setting from dim to bright. Coating Multi-layer coating for all lens. magnification 1X ELECTRONIC DATA Battery CR2032 Battery Life 50,000 hours. Base on setting 6. current is 5uA(micro Ampere). the battery capacity is 250mAHour. 250mAHoursX1000/5uA=50,000 hours Auto Shutoff 8 Hours. After s

Holosun - HS403A Parallax Free Red Dot Sight (Up to 50000hr Battery Life) price comparison: the lowest price is $169.90 at Bunny Workshop, and the median across 1 tracked listing is $169.90.