1. Ifihan
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.

Aworan 1.1: Iwaju view of the HOLOSUN HE403B-GR Micro Sight.
2. Package Awọn akoonu
Jẹrisi pe gbogbo awọn ohun kan wa ninu package:
- HOLOSUN HE403B-GR / HS403B Micro Sight
- Lower 1/3 Co-witness Mount (1.63")
- Low Mount (0.75")
- CR2032 Batiri
- T10 L Key
- Lẹnsi Aṣọ
- Rubber Lens Cover
3. Eto
3.1. Fifi sori batiri
- Unscrew the battery tray cover located on the side of the sight using the provided T10 L key.
- Fi batiri CR2032 sinu pẹlu apa rere (+) ti o kọju si oke.
- Securely replace the battery tray cover.
3.2. Ṣíṣe Àwòrán náà
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.

Aworan 3.1: Angled view of the HOLOSUN HE403B-GR Micro Sight, demonstrating its compact size.
4. Awọn ilana Iṣiṣẹ
4.1. Ṣíṣe àtúnṣe sí Títan/Pá Agbára àti Ìmọ́lẹ̀
- Agbara Tan: Press either the '+' or '-' button to turn on the sight.
- Atunse Imọlẹ: 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.
- Agbara Pa: Press and hold the '+' button for 3 seconds to turn off the sight.
4.2. Shake Awake Technology
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. Àtúnṣe Afẹ́fẹ́ àti Gíga
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.
- Yipada awọn Igbega turret (top) clockwise to move the point of impact down, and counter-clockwise to move it up.
- Yipada awọn Afẹfẹ turret (right side) clockwise to move the point of impact right, and counter-clockwise to move it left.
- After zeroing, replace the protective caps.

Aworan 4.2: Apa 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. Itọju
5.1. Ninu
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. Batiri Rirọpo
Replace the CR2032 battery when the reticle dims significantly or fails to illuminate. Refer to Section 3.1 for battery installation steps.
5.3. Ibi ipamọ
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. Laasigbotitusita
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.
- Rii daju pe batiri ti fi sori ẹrọ daradara ati pe o ni idiyele ti o to. Rọpo ti o ba wulo.
- Adjust brightness settings using the '+' button.
- Reticle Appears Dim or Flickers:
- Rọpo batiri CR2032.
- Rii daju pe awọn olubasọrọ batiri jẹ mimọ ati laisi ipata.
- 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. Awọn pato
| Awoṣe | HE403B-GR (Green Dot) / HS403B (Red Dot) |
| Reticle | 2 MOA Dot |
| Ina Wefulenti | 540nm (Awọ ewe) |
| Igbega | 1x |
| Oju Relief | Kolopin |
| Parallax | Parallax Ọfẹ |
| Orisun agbara | CR2032 Batiri |
| Igbesi aye batiri | Titi di wakati 50,000 |
| Awọn Eto Imọlẹ | 10 Daylight & 2 Night Vision |
| Window Iwon | Opin 20mm |
| Ohun elo Ile | 6061 T6 aluminiomu |
| Atunṣe fun Tẹ | 0.5 MOA |
| W&E Travel Range | ± 50 MOA |
| Iwọn Nkan | 4.32 iwon |
| Awọn iwọn Nkan (LxWxH) | 2.44 x 1.18 x 1.45 inches |
| Awọn ẹrọ ibaramu | Air Rifle, Cross Bow, Pistol, Shotgun |
| Iṣagbesori Iru | Standard mount (includes lower 1/3 co-witness and low mounts) |
8. Atilẹyin ọja & Atilẹyin
8.1. atilẹyin ọja Information
The HOLOSUN HE403B-GR / HS403B Micro Sight is covered by a s'aiye atilẹyin ọja. For specific details regarding warranty coverage and terms, please refer to the official HOLOSUN webojula tabi kan si atilẹyin alabara.
8.2. Onibara Support
For technical assistance, warranty claims, or any other inquiries, please visit the official HOLOSUN webojula tabi kan si wọn onibara iṣẹ Eka. Alaye olubasọrọ le ṣee ri ni igbagbogbo lori olupese webojula.