Holosun HS403B Red Dot

Name: Holosun HS403B Red Dot
Brand: Holosun
Availability: InStock

Holosun · Sights & Optics

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Best price

$149.77at Sportsman's Warehouse

In stock checked Oct 19, 2026

Buy at Sportsman's Warehouse

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Where to buy

Store	Price	Availability	Buy
Sportsman's Warehouse Best price	$149.77checked Oct 19, 2026	In stock	Buy at Sportsman's Warehouse
Brownells	$112.49Salechecked Oct 21, 2026	Out of stock	Buy at Brownells
Palmetto State Armory	$169.99not checked recently	Out of stock	Buy at Palmetto State Armory
Rainier Arms	Check priceprice on the store's site	Check store	Buy at Rainier Arms

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Lowest in-stock price in the last 30 days: $149.77 at Sportsman's Warehouse. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$112.49	$112.49	$112.49
Sportsman's Warehouse	$149.77	$149.77	$149.77

Since Sep 27, 2026.

About this part

The Holosun HS403B Red Dot is a red dot sight from Holosun. It's sold by 3 stores (1 in stock), from $112.49 to $169.99. The lowest in-stock price in the last 30 days was $149.77 at Sportsman's Warehouse.

Specifications

Manufacturer: Holosun
Type: Red Dot
Magnification class: 1x (non-magnified)
Red dot footprint: Aimpoint Micro / T2

From the manufacturer

The 403B is a small compact micro red dot optic. Employing Holosun’s LED technology, the lifetime for one CR2032 battery can be up to 5 years. This optic features our “Shake Awake” technology that powers the optic on with slight movement of the 403B. It may be installed on various firearms such as shotguns, pistols ,air rifles and crossbows. The HS403B is compatible with standard mounts.
Features:
•Designed for day and night use•New advanced technology LED allows up to 50,000 hours of operation on one CR2032 battery•2 MOA on dot size•Reduced training time and ammunition•Unlimited field of view•Parallax-free with unlimited eye relief•Unaffected by extreme weather conditions•Durable and reliable construction•Low mount and 1/3 Co-witness mount included

OPTICAL DATA

Light Source
LED

Reticle
2MOA Dot

Parallax Free
Yes

Unlimited Eye Relief
Yes

Magnification
1x

Multi-Coatings
Yes

Integrated Laser
No

ELECTRONIC DATA

Battery Type
CR2032

Battery Life
Up to 50,000 Hours

Brightness Setting
10 Daylight & 2 NV Compatible

MECHANICAL DATA

Housing Material
6061 Aluminum

Surface Finish
MAO

Housing Color
Black

Adjustment per Click
0.5 MOA

W&E Travel Range
±50 MOA

Storage Temperature
-40? - 158?

Working Temperature
-22? - 140?

Submersion
IP67

Vibration
Up to 1000G

PHYSICAL DATA

Window Size
20mm Diameter

Dimension (in)
2.44 x 1.18 x 1.45

Weight (oz)
4.3

Central Height (in)
1.63