The Holosun HE403BGR 403 Black Anodized 1 x 20 mm 2 MOA Green Dot is a compact micro sight built for shooters who want a crisp, daylight-bright aiming point in a rugged package. Its 2 MOA green dot pairs with a 20 mm objective lens and 1x magnification to deliver a clear, parallax-free sight picture, while the Shake Awake feature and efficient green LED technology stretch a single CR2032 battery life up to 50,000 hours. Multicoated lenses, IP67-rated submersion resistance, and a durable aluminum housing with MAO surface finish help this optic stand up to hard field use.

Designed to mount directly to standard Picatinny rails, the HE403BGR includes both high and low mounts so you can tailor your cheek weld and co-witness height on rifles, shotguns, air rifles, or crossbows. Ten daylight brightness settings plus two night-vision compatible levels make it easy to dial in the dot for bright sun, indoor ranges, or low-light training. With unlimited eye relief, generous field of view, and simple 0.5 MOA click adjustments across a 50 MOA travel range, this sight supports fast target transitions and precise zeroing, reflecting Holosun’s focus on practical innovation for modern shooters.

• Manufacturer: Holosun
• Model: HE403B-GR / 403B
• Type: Red Dot Sight
• Magnification: 1x
• Objective Lens Diameter: 20 mm
• Reticle: 2 MOA Green Dot
• Brightness Settings: 10 Daylight + 2 Night Vision