• FAST & FREE SHIPPING ON EVERY ORDER
  • WISH LIST
  • CONTACT US
  • FAST & FREE SHIPPING ON EVERY ORDER
Milspec Retail
Login / Register
0 Compare
0 items / $0.00
Menu
Milspec Retail
0 items / $0.00
Browse Categories
  • AR Parts

    • LOWER PARTS
      • Bolt Catches
      • Buffer Tubes
      • Endplates
      • Lower Parts Kits
      • Magazine Releases
      • Pistol Grips
      • Rifle Buffers
      • Rifle Triggers
      • Safety Selectors
      • Trigger Guards
      • Stocks and Braces
    • UPPER PARTS
      • Bolt Carrier Groups
      • Charging Handles
      • Compensators
      • Complete Uppers
      • Flash Hiders
      • Forward Assists
      • Gas Blocks
      • Gas Tubes
      • Muzzle Devices
      • Rails
      • Rifle Barrels
      • Upper Receivers
    NEWLY ADDED
    • Q Sugar Weasel 13" Upper Receiver - 300BLK $1,250.00
    • RS Regulate GAR-10M-N Galil ACE M-LOK Rail $231.00 $211.00
    • Q Literally The Best Trigger Ever Made $350.00

  • AK Parts
  • Pistol Parts
    • Pistol Barrels
    • Pistol Compensators
    • Pistol Lights
    • Pistol Magwells
    • Pistol Sights
    • Pistol Slides
    • Pistol Triggers
    • Pistol Slide Stops & Releases
    • Pistol Magazine Base Plates
  • Shotgun Parts
    • Shotgun Forends
    • Shotgun Grips
    • Shotgun Optic Mounts
    • Shotgun Stocks
    • Shotgun Triggers
  • Firearm Accessories
    • CONTROL
      • Bipods
      • Hand and Finger Stops
      • Rail Covers
      • Vertical Grips
      • Angled Grips
    • OPTICS
      • Sights & Optics
      • Optic Mounts
      • Iron Sights
    • ILLUMINATION
      • Weapon Mounted Lights
      • Weapon Light Mounts
      • Pressure Switches
      • Switch Mounts
      • Pistol Lights
      • Handheld Lights
    • TOOLS
      • Multitools
      • Gunsmithing Tools
    NEWLY ADDED
    • Aimpoint Acro P-2 - 3.5 MOA Red Dot Reflex Sight $667.00 $599.00
    • Badger Ordnance Condition One Trijicon RMR Mount $40.00
    • Killer Innovations SIG P320 Magazine Extension $49.99
  • Tactical Gear
    • Back Packs & Bags
    • Chest Rigs
    • Medical
    • Plate Carriers
    • Pouches
    • Slings
    • Training Tools
  • SHOP
    rifle-parts-vert-copy

    RIFLE PARTS

    pistol-parts-vert

    PISTOL PARTS

    gear-vert-1

    GEAR

    accessories-vert

    ACCESSORIES

  • BRANDS
  • NEW ARRIVALS
  • UPDATES
MIL/LE DISCOUNT
  • SUPPORT
    • Contact Us
    • Order Info
    • Track Order
    • Start a Return
    • Cancel Order
Click to enlarge
Home Firearm Accessories Sights & Optics Red Dot Sights Holosun 403B Micro Red Dot Sight w/ Lower 1/3rd Mount
Holosun

Holosun 403B Micro Red Dot Sight w/ Lower 1/3rd Mount

$211.75

The HS403B is a 20mm micro optical sight designed for rifle and carbine applications. Features include 12 brightness settings, Holosun’s Super LED with up to 50k hours of battery life, and 2 MOA Dot.

  • 2 MOA Dot Reticle
  • Up to 50,000 Hours Battery Life (Setting 6)
  • 12 Brightness Settings: 10 DL & 2 NV Compatible
  • Convenient Tray Battery Compartment
  • Parallax-free & Unlimited Eye Relief

In stock

FREE Shipping in the USA  |   FREE 30 Day Returns

Compare
Add to wishlist
UPC: 760921087428 SKU: HS403B Categories: Firearm Accessories, Red Dot Sights, Sights & Optics
Share:
  • Description
  • Additional information
  • Shipping & Delivery
Description

The HS403B is a 20mm micro optical sight designed for rifle and carbine applications. Features include 12 brightness settings, Holosun’s Super LED with up to 50k hours of battery life, and 2 MOA Dot.

In the Box:

  • Lower 1/3 co-witness Mount
  • Low Profile Mount
  • T10 L Key
  • Rubber Cover
  • User Manual
  • CR2032 Battery
  • Lens Cloth

Features:

  • 2 MOA Dot Reticle
  • Up to 50,000 Hours Battery Life (Setting 6)
  • 12 Brightness Settings: 10 DL & 2 NV Compatible
  • Convenient Tray Battery Compartment
  • Parallax-free & Unlimited Eye Relief

Optical Data:

  • Reticle: 2 MOA Dot
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes

Electronic Data:

  • Power Source: Battery
  • Battery Type: CR2032
  • Battery Life: (50,000 Hours)
  • Brightness Settings: 10 DL&2 NV

Physical Data:

  • Window Size: 20mm Diameter
  • Dimension: 2.45×1.43×1.6
  • Weight: 2.82

Mechanical Data:

  • Housing Material: 6061 T6 Aluminum
  • Surface Finish: MAO
  • Adjustment per Click: 0.5 MOA
  • W&E Travel Range: ±50 MOA

Environmental Data:

  • Storage Temperature: -40℃~70℃
  • Working Temperature: -30℃~60℃
  • Submersion: IP67
  • Vibration: 1000G
Additional information
Brand

Holosun

Magnification

1x

MOA

2.0 MOA

Material

6061 Aluminim

Shipping & Delivery

FREE, FAST SHIPPING

We offer fast, free shipping on every US order. Most orders less than $100 will ship via USPS. Orders exceeding $100 will ship 2 or 3 Day FedEx. You can upgrade any order to 2-Day or Overnight during checkout for an additional charge.

To get your order shipped out same day, checkout before 1:00 PM Pacific time (4:00 PM Eastern).

INTERNATIONAL

Milspec Retail offers worldwide shipping on hundreds of products. However, due to the nature of our business, many products are restricted from export. These items will not be sold to customers located outside of the USA.

Related products

Compare
Add to wishlist
Select options

Arisaka Defense Low Profile Picatinny Rail – KeyMod

$32.00
RS Regulate 300
Compare
Add to wishlist
Select options

Scalarworks LEAP/07 Ultra Light-QD Scope Mount 30/34mm – 1.57/1.93″

10 reviews
$399.99
-21%
Compare
Add to wishlist
Select options

Cloud Defensive Light Control System for Streamlight ProTac Switch – LCSMK2

Rated 5.00 out of 5
12 reviews
$54.99 – $68.90
-7%
Compare
Add to wishlist
Add to cart

Arisaka Defense Optic Leveler – Small Tool Kit

Rated 5.00 out of 5
3 reviews
$27.00 $25.00
Compare
Add to wishlist
Add to cart

Arisaka Defense QD Mount for M-LOK – Quick Detach Sling Swivel Mount

3 reviews
$23.00
-10%OUT OF STOCK
Railscales Anchor Grip
Compare
Add to wishlist
Read more

RailScales Anchor Vertical Forend Grip – M-LOK & KeyMod Multi-Mount

$129.00 $116.00
Compare
Add to wishlist
Select options

Arisaka Defense Offset Scout Mount – M-LOK

8 reviews
$45.00 – $48.00
-10%
Compare
Add to wishlist
Select options

SureFire M600DF – Duel Fuel Scout Weapon Mounted Light 1500 Lumen

Rated 5.00 out of 5
3 reviews
$329.00 $296.00
Aero Precision
Arisaka Defense
Bravo Company USA (BCM)
Emissary Development
Esstac
Ferro Concepts
Geissele Automatics
HRF Concepts
Modlite Systems
Reptilia Corp
SCALARWORKS
Unity Tactical
milspec

The VIP lounge of gun parts and firearm accessories.

Contact us with any questions or inquiries:

Message Us
Phone: (323) 400-2858
Panorama City, CA 91402
SHOPPING
  • Products
  • Brands
  • New Arrivals
  • Sale Products
  • RFQ Bulk Purchasing
CUSTOMER SUPPORT
  • Order Info & Policies
  • Track Order
  • Start a Return
  • Cancel Order
  • Privacy Policy
  • Export Restrictions
COMPANY
  • Contact Us
  • Customer Reviews
  • About Our Company
  • MIL/LE Discount
  • Apply as Vendor
  • Careers
MILSPEC RETAIL COPYRIGHT 2022
visa mastercard amex discover
  • Menu
  • Categories
  • AR Parts
    • Blast Shields
    • Bolt Carrier Groups
    • Braces
    • Buffer Tubes
    • Charging Handles
    • Compensators
    • Complete Uppers
    • Endplates
    • Flash Hiders
    • Forward Assists
    • Gas Blocks
    • Gas Tubes
    • Lower Parts
    • Lower Parts Kits
    • Magazines
    • Mag Releases
    • Mag Extensions
    • Muzzle Devices
    • Muzzle Brakes
    • Pistol Grips
    • Pistol Grips
    • Rails
    • Rail Covers
    • Rail Sections
    • Rifle Barrels
    • Rifle Buffers
    • Rifle Stocks
    • Rifle Triggers
    • Safety Selectors
    • Stocks & Braces
    • Trigger Guards
    • Upper Parts
    • Upper Parts Kits
    • Upper Receivers
  • AK Parts
  • Pistol Parts
    • Base Plates
    • Compensators
    • Magwells
    • Pistol Barrels
    • Pistol Magazines
    • Pistol Sights
    • Pistol Slides
    • Pistol Triggers
  • Shotgun Parts
    • Shotgun Forends
    • Shotgun Grips
    • Shotgun Optic Mounts
    • Shotgun Stocks
  • Firearm Accessories
    • Bipods
    • Grips
    • Finger Stops
    • Hand Stops
    • Lights & Lasers
    • Magazines
    • Sights & Optics
    • Weapon Mounted Flashlights
    • Weapon Light Mounts
  • Tactical Gear
    • Bags & Packs
    • Chest Rigs
    • Medical
    • Plate Carriers
    • Pouches
    • Slings
    • Training Tools
  • MAIN SHOP
  • BRANDS
  • NEW ARRIVALS
  • SUPPORT
    • Contact Us
    • Order Info
    • Track Order
    • Start a Return
    • Cancel Order
  • MIL/LE DISCOUNT
  • Compare
  • Login / Register
Shopping cart
close

Sign in

close

Lost your password?
Or login with
Facebook
Google

No account yet?

Create an Account

FREE SHIPPING TRANSIT TIMES

2-3 DAYS

  • Order value is $100 or more.
  • Shipping address is in the USA.
  • Some large and heavy products excluded.
  • Delivery days do not include Saturday, Sunday, and legal/postal holidays.

3-5 DAYS

  • Order value is under $100 or contains large/heavy products.
  • Shipping address is in the USA.
  • Delivery days do not include Saturday, Sunday, and legal/postal holidays.