---
product_id: 63486383
title: "HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal"
brand: "holosun"
price: "HK$50"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/63486383-holosun-mens-hs403b-micro-red-dot-look-2-moa-black
store_origin: HK
region: Hong Kong
---

# 2 MOA precision red dot 50,000 hrs battery life Parallax-free aiming HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal

**Brand:** holosun
**Price:** HK$50
**Availability:** ❌ Out of Stock

## Summary

> 🎯 Lock on, stay sharp, and never miss your mark.

## Quick Answers

- **What is this?** HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal by holosun
- **How much does it cost?** HK$50 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/63486383-holosun-mens-hs403b-micro-red-dot-look-2-moa-black)

## 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 Durability:** High-strength aluminum with matte finish built to withstand the toughest conditions.
- • **Instant Activation:** Auto wake on movement means zero downtime between targets.
- • **Precision Targeting:** 2 MOA red dot ensures razor-sharp accuracy for critical shots.
- • **Unmatched Endurance:** Over 5 years of continuous battery life keeps you ready for every mission.
- • **Crystal Clear Vision:** High-quality lens delivers a bright, clear sight picture in any light.

## Overview

The HOLOSUN HS403B Micro Red Dot Sight offers a parallax-free 2 MOA red dot with an ultra-long 50,000-hour battery life and automatic motion-activated wake. Crafted from high-strength aluminum with a matte finish, it delivers crystal-clear optics and rugged durability, making it the perfect universal sight for hunters and tactical pros seeking precision and reliability.

## Description

holosun HS403B Micro Red Dot Visor 2 Moa with AR Riser

## Features

- 50,000 hours of battery life (that's more than 5 years of continuous operation) movement awake with 8 hours automatic shut-off
- Parallax free, if the red dot is on the target, you are like that
- High quality clear lens with razor-sharp, bright red dot
- High-strength aluminium, mao finish, the glass should be at an angle and not flush with the bezel
- Device "auto wake" when the vibration is detected

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Size | universal |
| Style | Classic |
| Weight | 408 g |
| Material type | Plastic |
| Sport | Hunting |
| Included components | 1 |
| Batteries included? | Yes |
| Brand | Holosun |
| Department | Men's |
| Manufacturer | Holosun |
| Item model number | HS403B |
| Product Dimensions | 15.24 x 15.24 x 10.16 cm; 122.47 g |
| ASIN | B01BJ3ZXD0 |

## Product Details

- **Brand:** Holosun
- **Colour:** Black
- **Style:** Classic
- **Sport:** Hunting
- **Item weight:** 122 g
- **Material:** Plastic
- **Magnification maximum:** 1 x
- **Objective lens diameter:** 20 Millimetres
- **Magnification minimum:** 1 x
- **Mounting type:** Weaver Mount

## Images

![HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal - Image 1](https://m.media-amazon.com/images/I/51EE-VWJ2ZL.jpg)
![HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal - Image 2](https://m.media-amazon.com/images/I/51oKCMIZDeL.jpg)
![HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal - Image 3](https://m.media-amazon.com/images/I/41OHGVIUl8L.jpg)
![HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal - Image 4](https://m.media-amazon.com/images/I/4111gFi0aFL.jpg)
![HOLOSUN Men's HS403B Micro Red Dot Look (2 Moa), Black, Universal - Image 5](https://m.media-amazon.com/images/I/41uVtntO+iL.jpg)

## Questions & Answers

**Q: Will this cowitness with my a2 front post? I don't mean a lower 3rd cowitness**
A: No, not with the mount the optic ships with.  It is compatible with Aimpoint T1 mounts, so full cowitness it definitely possible.

**Q: Does this include the high rise mount AND a low base?**
A: The HS403B comes with a high mount (lower 1/3 co-witness on standard AR sights) and a low mount.We are an AUTHORIZED distributor and the above answer came directly from HOLOSUN USA . Hope that helps !

**Q: Does this have the acss reticle, or just a dot?**
A: Just a dot.

**Q: Does this pair with the holoson hm3x magnifier? any special parts or spacers needed?**
A: It should, but you can always call holosun... it’s free.

## Frequently Bought Together

- HOLOSUN 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
- Streamlight 88066 ProTac Rail Mount HL-X 1000-Lumen Multi-Fuel Weapon Light with Remote Switch, Tail Switch, Clips, and CR123A Batteries, Box, Black
- HOLOSUN HM3X 3X Flip-to-Side Magnifier w/QD Mount HM3X

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**Shop now:** [https://www.desertcart.hk/products/63486383-holosun-mens-hs403b-micro-red-dot-look-2-moa-black](https://www.desertcart.hk/products/63486383-holosun-mens-hs403b-micro-red-dot-look-2-moa-black)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-26*