Holosun HS403B 2 MOA Red Dot Sight with Shake Awake
Crafted from robust 6061 aluminum, the HS403B's housing is built to withstand rugged environments and includes both a lower 1/3 co-witness mount (1.63”) and a low mount (.75”), accommodating rifles with low-comb height configurations seamlessly. It incorporates Shake Awake technology, which automatically activates the sight upon movement and conserves battery life during idle periods, enhancing operational efficiency.
User-friendly digital buttons on the sight enable swift adjustments to reticle brightness and settings, ensuring optimal visibility and accuracy. Rubber lens covers safeguard the optics from scratches and impact, maintaining clarity and longevity in challenging conditions. Additionally, the side-mounted battery tray offers convenient access to the 2032 battery, facilitating quick replacements without disrupting shooting activities.
Ideal for shooters of all proficiency levels, the HS403B combines advanced features with robust construction, making it a versatile choice for tactical operations, competitive shooting, and recreational use alike. Its reliability, precision, and ease of use make it an essential tool for achieving consistent performance in dynamic shooting environments.
- Window Size 20mm Diameter
- Dimension (in) 2.45×1.43×1.6
- Weight (oz) 2.82
- Housing Material 6061 T6 Aluminum
- Surface Finish MAO
- Adjustment per Click 0.5 MOA
- W&E Travel Range ±50 MOA
- Storage Temperature -40℃~70℃
- Working Temperature -30℃~60℃
- Submersion IP67
- Vibration 1000G
HS403B is a 20mm micro sight designed for rifle and carbine applications. HS403B features Holosun’s Red Super LED with 50k hour battery life, 10 daylight and 2 night vision compatible reticle intensity settings. Its 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.
Additional features include Shake Awake technology, digital buttons for setting changes, rubber lens covers, and a side-mounted battery tray for the 2032 battery. HS403B is a versatile sight for users of all levels.
- Holosun HS403B 2 MOA Red Dot Sight with Shake Awake
- Lower 1/3 Cowitness Mount
- Low Profile Mount
- T10 L Key
- Rubber Cover
- User Manual
- CR2032 Battery
- Lens Cloth
- Holosun 10 years / product lifetime warranty. Read more here
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email order@tacticalscope.co.uk.
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.
