---
product_id: 76850258
title: "HE403B-GR / HS403B 2 MOA Dot Micro Sight for Rifles - Shake-Awake Super LED Durable Waterproof Aluminum Sight with Multilayer Reflective Glass & 12 Brightness Settings - Red/Green Dot Options"
brand: "holosun"
price: "€ 366.67"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/76850258-he403b-gr-hs403b-2-moa-dot-micro-sight-for-rifles
store_origin: SK
region: Slovakia
---

# 12 brightness settings 50,000 hrs battery life 6061 aluminum durable housing HE403B-GR / HS403B 2 MOA Dot Micro Sight for Rifles - Shake-Awake Super LED Durable Waterproof Aluminum Sight with Multilayer Reflective Glass & 12 Brightness Settings - Red/Green Dot Options

**Brand:** holosun
**Price:** € 366.67
**Availability:** ✅ In Stock

## Summary

> 🎯 Lock in your edge with the Holosun HE403B-GR — precision meets power in a micro sight.

## Quick Answers

- **What is this?** HE403B-GR / HS403B 2 MOA Dot Micro Sight for Rifles - Shake-Awake Super LED Durable Waterproof Aluminum Sight with Multilayer Reflective Glass & 12 Brightness Settings - Red/Green Dot Options by holosun
- **How much does it cost?** € 366.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/76850258-he403b-gr-hs403b-2-moa-dot-micro-sight-for-rifles)

## Best For

- holosun enthusiasts

## Why This Product

- Trusted holosun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Ready:** Built from aircraft-grade 6061 aluminum for waterproof durability that withstands the toughest conditions.
- • **Instant-On Shake Awake:** Never miss a shot—optic instantly activates with the slightest movement, conserving power when idle.
- • **Unmatched Battery Endurance:** Stay mission-ready with up to 50,000 hours of power—no downtime, no excuses.
- • **Precision Visibility Anytime:** 12 customizable brightness levels ensure your reticle is perfectly visible in any light.
- • **Crystal-Clear Multilayer Glass:** Experience industry-leading clarity and glare reduction for pinpoint accuracy every time.

## Overview

The Holosun HE403B-GR is a 20mm micro green dot sight designed for rifles and carbines, featuring a 2 MOA reticle with 12 brightness settings powered by an ultra-efficient 540nm Super LED. Its Shake Awake technology extends battery life up to 50,000 hours by deactivating the LED when not in use, instantly reactivating on movement. Constructed from durable 6061 aluminum with multilayer reflective glass, it offers waterproof reliability, superior clarity, and rugged performance for professional-grade shooting accuracy.

## Description

HOLOSUNHE403B-GR / HS403B 2 MOA Dot Micro Sight for Rifles - Shake-Awake Super LED Durable Waterproof Aluminum Sight with Multilayer Reflective Glass & 12 Brightness Settings - Red/Green Dot Options

## Features

- HOLOSUN GREEN DOT SIGHT - HE403B-GR is a 20mm micro sight designed for rifle and carbine applications; It features Holosun's ultra efficient 540nm Green Super LED with up to 50k hour battery life and 12 reticle intensity settings; The housing is made from 6061 aluminum and includes both a lower 1/3 co-witness mount (1.63") and a low mount (.75") for low-comb height rifle applications; Lens cloth, rubber lens cover, T10 L key, and CR2032 battery included
- SHAKE AWAKE TECHNOLOGY - Extends battery life by deactivating the optic's LED while not in use; Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred; The slightest touch of the optic instantly reactivates the LED so your Holosun sight for rifle is ready when needed
- MULTILAYER REFLECTIVE GLASS - This green dot sight for rifle is manufactured using optical-quality glass lenses with multilayer coatings applied to facilitate maximum light transmission and wear resistance while reducing glare and facilitating reduced power requirements; Holosun's highly reflective coatings produce industry-leading reticle intensity, clarity, and battery efficiency
- SUPER LED - This micro sight for rifle is equipped with Holosun Super LED technology that provides a versatile range of reticle intensity settings; Holosun Super LEDs have ultra-efficient power usage creating battery like as high as 50,000 hours; Our Super Green LED is designed to match the wavelength of light that the human eye is most reactive to
- SPECIFICATION - Reticle: Green 2 MOA Dot; Light Wavelength: 540nm; Magnification: 1x; Parallax Free & Unlimited Eye Relief; Power Source: Battery; Battery Type: CR2032; Battery Life (Hours): 50000; Brightness Setting: 10 DL & 2 NV; Window Size: 20mm Diameter; Housing Material: 6061 T6 Aluminum; Adjustment per Click: 0.5 MOA; W&E Travel Range: ±50 MOA; Black Finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HOLOSUN |
| Color | Black |
| Style | Green 2 MOA Dot |
| Sport | Hunting |
| Item Weight | 4.32 ounces |
| Material | Aluminum |
| Magnification Maximum | 1 x |
| Objective Lens Diameter | 2E+1 Millimeters |
| Compatible Devices | Cross Bow |
| Mounting Type | Standard mount |
| Night vision | No |
| Model Name | HE403B-GR |
| Manufacturer | Holosun |
| Reticle Type | Green 2 MOA Dot |
| UPC | 605930624793 |
| Global Trade Identification Number | 00605930624793 |
| Item Package Dimensions L x W x H | 4.72 x 3.74 x 3.11 inches |
| Package Weight | 0.35 Kilograms |
| Item Dimensions  LxWxH | 2.44 x 1.18 x 1.45 inches |
| Brand Name | HOLOSUN |
| Warranty Description | Lifetime Warranty |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | HE403B-GR |
| Included Components | CR2032 Battery |

## Product Details

- **Brand:** HOLOSUN
- **Color:** Black
- **Style:** Green 2 MOA Dot
- **Sport:** Hunting
- **Item Weight:** 4.32 ounces
- **Material:** Aluminum
- **Magnification Maximum:** 1 x
- **Objective Lens Diameter:** 2E+1 Millimeters
- **Compatible Devices:** Cross Bow
- **Mounting Type:** Standard mount

## Images

![HE403B-GR / HS403B 2 MOA Dot Micro Sight for Rifles - Shake-Awake Super LED Durable Waterproof Aluminum Sight with Multilayer Reflective Glass & 12 Brightness Settings - Red/Green Dot Options - Image 1](https://m.media-amazon.com/images/I/41-2Ni5NduS.jpg)

## Available Options

This product comes in different **Color, Style** options.

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**Shop now:** [https://www.desertcart.sk/products/76850258-he403b-gr-hs403b-2-moa-dot-micro-sight-for-rifles](https://www.desertcart.sk/products/76850258-he403b-gr-hs403b-2-moa-dot-micro-sight-for-rifles)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-25*