1. Úvod
This manual provides instructions for the proper setup, operation, and maintenance of your HOLOSUN HE403B-GR / HS403B 2 MOA Green Dot Micro Sight. Please read this manual thoroughly before using the device to ensure safe and effective operation.

Obrázek 1.1: Přední strana view of the HOLOSUN HE403B-GR Micro Sight.
2. Obsah balení
Ověřte, zda jsou v balení přítomny všechny položky:
- HOLOSUN HE403B-GR / HS403B Micro Sight
- Lower 1/3 Co-witness Mount (1.63")
- Low Mount (0.75")
- CR2032 baterie
- T10 L Key
- objektiv Cloth
- Rubber Lens Cover
3. Nastavení
3.1. Instalace baterie
- Unscrew the battery tray cover located on the side of the sight using the provided T10 L key.
- Vložte baterii CR2032 kladným pólem (+) nahoru.
- Securely replace the battery tray cover.
3.2. Montáž mířidla
The sight includes two mounts: a lower 1/3 co-witness mount (1.63") and a low mount (0.75"). Choose the appropriate mount for your rifle or carbine application.
- Attach the desired mount to the bottom of the sight using the provided screws.
- Place the sight assembly onto your firearm's Picatinny or Weaver rail.
- Tighten the mount's cross bolt or quick-release lever to secure the sight firmly to the rail. Ensure it is stable and does not wobble.

Obrázek 3.1: Úhlové view of the HOLOSUN HE403B-GR Micro Sight, demonstrating its compact size.
4. Návod k obsluze
4.1. Zapnutí/vypnutí a nastavení jasu
- Zapnutí: Press either the '+' or '-' button to turn on the sight.
- Nastavení jasu: Use the '+' button to increase brightness and the '-' button to decrease brightness. There are 12 brightness settings: 10 for daylight and 2 for night vision compatibility.
- Vypnout: Press and hold the '+' button for 3 seconds to turn off the sight.
4.2. Technologie Shake Awake
The sight features Shake Awake technology to conserve battery life. When the optic detects no motion for a set period (default is 10 minutes), the LED will automatically deactivate. The slightest movement of the optic will instantly reactivate the LED to its last used brightness setting.

Image 4.1: Explanation of Shake Awake Technology.
4.3. Úprava stranového a elevačního sklonu
The windage and elevation adjustments are located on the top and right side of the sight, respectively. Each click adjusts the point of impact by 0.5 MOA.
- Remove the protective caps from the adjustment turrets.
- Use a flathead screwdriver or the cap itself to turn the adjustment turrets.
- Otočte Nadmořská výška turret (top) clockwise to move the point of impact down, and counter-clockwise to move it up.
- Otočte Vítr turret (right side) clockwise to move the point of impact right, and counter-clockwise to move it left.
- After zeroing, replace the protective caps.

Obrázek 4.2: Boční strana view of the sight, showing the windage adjustment turret.
4.4. Reticle Information
The HE403B-GR features a 2 MOA Green Dot reticle. The HS403B features a 2 MOA Red Dot reticle. Both models offer a clear, precise aiming point.

Image 4.3: Visual representation of the 2 MOA Green Dot and Red Dot reticles.
5. Údržba
5.1. Čištění
To maintain optical clarity, regularly clean the lenses with the provided lens cloth. For stubborn smudges, a small amount of lens cleaning solution designed for optics can be used. Avoid using harsh chemicals or abrasive materials.
5.2. Výměna baterie
Replace the CR2032 battery when the reticle dims significantly or fails to illuminate. Refer to Section 3.1 for battery installation steps.
5.3. Skladování
When not in use, store the sight with the rubber lens cover installed to protect the lenses from dust and scratches. Store in a cool, dry place.
6. Řešení problémů
If you encounter issues with your HOLOSUN Micro Sight, refer to the following common problems and solutions:
- Reticle Not Visible:
- Check if the sight is powered on.
- Ujistěte se, že je baterie správně nainstalována a dostatečně nabitá. V případě potřeby ji vyměňte.
- Adjust brightness settings using the '+' button.
- Reticle Appears Dim or Flickers:
- Vyměňte baterii CR2032.
- Ujistěte se, že kontakty baterie jsou čisté a bez koroze.
- Zero Not Holding:
- Verify that the sight is securely mounted to the firearm rail. Check all screws and mounting hardware.
- Ensure the adjustment turrets are not loose or accidentally moved.
If problems persist after attempting these solutions, please contact HOLOSUN customer support.
7. Specifikace
| Model | HE403B-GR (Green Dot) / HS403B (Red Dot) |
| Záměrný kříž | 2 MOA Dot |
| Světelná vlnová délka | 540nm (zelená) |
| Zvětšení | 1x |
| Oční úleva | Neomezený |
| Paralaxa | Bez paralaxy |
| Zdroj napájení | CR2032 baterie |
| Životnost baterie | Až 50,000 hodin |
| Nastavení jasu | 10 Daylight & 2 Night Vision |
| Velikost okna | Průměr 20 mm |
| Materiál bydlení | Hliník 6061 T6 |
| Úprava na kliknutí | 0.5 MOA |
| Cestovní řada W&E | ±50 MOA |
| Hmotnost položky | 4.32 unce |
| Rozměry položky (DxŠxV) | 2.44 x 1.18 x 1.45 palce |
| Kompatibilní zařízení | Air Rifle, Cross Bow, Pistol, Shotgun |
| Typ montáže | Standard mount (includes lower 1/3 co-witness and low mounts) |
8. Záruka a podpora
8.1. Informace o záruce
The HOLOSUN HE403B-GR / HS403B Micro Sight is covered by a Doživotní záruka. For specific details regarding warranty coverage and terms, please refer to the official HOLOSUN webwebu nebo kontaktujte zákaznickou podporu.
8.2. Zákaznická podpora
For technical assistance, warranty claims, or any other inquiries, please visit the official HOLOSUN webnebo kontaktujte jejich oddělení zákaznických služeb. Kontaktní informace obvykle naleznete na webových stránkách výrobce webmísto.