FREE Shipping on Canada & Mexico orders over $249 USD! See Details

FREE Shipping on U.S. orders over $75.

Check out what's on Sale! Shop Now!

Holosun  |  SKU: PAHS403B

Holosun HS403B 2 MOA Red Dot Sight - FDE 0.8 lb

Regular price $210.99 USD
Shipping calculated at checkout.

Flat dark earth Holosun HS403B red dot with 2 MOA reticle, Shake Awake, and included mounting accessories.

By continuing to checkout, you agree to our Terms of Service, Shipping Policy, Return Policy, and product restrictions.

⚠️ Sold for sporting and training applications. Customer is responsible for ensuring compliance with all applicable local laws and regulations. See Terms .

💰 Add $75.00 more to unlock free U.S. shipping.


🚚 Fast, trackable shipping

🔒 Secure checkout

🎯 Real magfed support

🚚 Shipping & Delivery

Most in-stock items ship within 3 business days.

Special order items are typically processed within 14 business days (excluding weekends and holidays).

Custom items may require additional time depending on production schedules.

If you’d like to receive your order sooner, please select an expedited shipping option at checkout.

Some products ship directly from the manufacturer, and an equivalent carrier or service level will be chosen to match your selected shipping speed.

Shipping delays caused by carriers are outside our control, but we’ll always help track updates.

See our Shipping Policy for details.

🔄 Returns, Exchanges & Warranty

Returns are accepted within 14 days for items that are unused, unopened, and in original packaging with no damage.

A restocking fee applies, but it may be partially waived if store credit is selected instead of a refund to the original payment method.

Custom builds, sale items, and hazardous goods are final sale.

Warranty Coverage: Manufacturer warranties apply to all standard products. Any defects, malfunctions, or performance issues are handled directly by the manufacturer per their terms.

HR Tactical Innovations covers a Fitment & Functionality Guarantee on all custom or modified items — if a verified production error occurs, we’ll replace the item.

View our Refund Policy for full details.

🌍 International Shipping

We ship worldwide to Canada, Mexico, Europe, Asia, and Oceania, including:

🇨🇭 Switzerland • 🇨🇿 Czechia • 🇩🇪 Germany • 🇩🇰 Denmark • 🇪🇸 Spain • 🇫🇮 Finland • 🇫🇷 France • 🇬🇧 United Kingdom • 🇭🇰 Hong Kong SAR • 🇮🇪 Ireland • 🇮🇹 Italy • 🇯🇵 Japan • 🇰🇷 South Korea • 🇲🇾 Malaysia • 🇳🇱 Netherlands • 🇳🇴 Norway • 🇵🇱 Poland • 🇵🇹 Portugal • 🇸🇪 Sweden • 🇸🇬 Singapore • 🇦🇺 Australia • 🇳🇿 New Zealand • 🇦🇪 UAE and more.

Transit averages 2–4+ weeks depending on customs clearance. Delays caused by customs or local authorities are outside of our control. Faster transit times may be available through expedited shipping options, though this does not guarantee faster customs processing.

Import duties, VAT, taxes, and brokerage fees are not included in your order total and must be paid by the recipient.

Customers are responsible for ensuring that all items ordered comply with their country’s import laws and for obtaining any required permits or documentation prior to purchase. We do not provide guidance on country-specific import requirements.

If a package is rejected, unclaimed, or returned due to unpaid duties, missing documentation, import restrictions, or an incorrect address:

  • The order will be issued as store credit only
  • Original shipping costs are non-refundable
  • Any non-recoverable shipping or return fees may be deducted

If a shipment is lost, seized, or not returned, an insurance claim must be completed before any resolution is provided. If the claim is denied, no refund or credit will be issued.

Pressurized or restricted items will ship via ground services only where permitted.

For more information view our Shipping Policy and our Refund Policy.

Questions? Contact [email protected] before checkout.

🎖️ Military / GovX Discounts

⚙️ Product Details

The Holosun HS403B is a 20mm micro red dot sight for rifles and carbines that helps focus the shooter's eye on the target for rapid acquisition. This optic features a red-illuminated 2 MOA reticle with 12 brightness settings for various low-light conditions. Powered by a single CR2032 battery, the HS403B has a 50,000-hour battery life and uses the Shake Awake feature to help preserve the battery by powering off the optic when not in use. When the battery fails, it's easy to swap it out for a fresh one, thanks to the convenient battery tray on the optic's side. Included with the optic are a lower 1/3 cowitness mount, low profile mount, T10 L key, rubber cover, battery, and lens cloth, so it's ready to be installed right out of the box. This model features 6061-T6 aluminum housing and has an FDE finish.

Features:
  • 20mm micro red dot sight
  • For use on rifles and carbines
  • 2 MOA dot reticle
  • Red illumination
  • CR2032 battery
  • 50,000-hour battery life
  • 12 Brightness settings - 10 Daylight / 2 Night Vision
  • 6061-T6 aluminum housing
  • FDE finish
  • Multi-coated lens
  • Includes lower 1/3 cowitness mount, low profile mount, rubber cover, T10 L key, CR2032 battery, and lens cloth


Specifications

  • Color / Finish
    Red / Flat Dark Earth / Hardcoat Anodized
  • Mounting Interface
    Picatinny / 1913, Aimpoint Micro
  • Optic Footprint
    T2 / Aimpoint Micro
  • Weight
    2.82 oz
  • Battery Type
    CR2032 3V Lithium Coin
  • Battery Size
    CR2032

Reviews & Questions

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL Wero
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Buy now pay later with Shop Pay

Buy now pay later with Shop Pay