Holosun HS403C Solar Red Dot Sight | 2 MOA, 50,000h, IP67
Holosun HS403C — Solar-Powered Reliability for Every Setup
The Holosun HS403C is built for shooters who want dependable performance and long-term durability in a compact package. This micro red dot sight combines the best of both worlds: a robust CR2032 battery system and innovative Solar Failsafe™ technology for uninterrupted operation, even if the battery fails. Designed to fit rifles and carbines, it’s equally at home on modern sporting rifles, tactical platforms, and versatile enough for hunting, competition, or range use. If you’re looking to buy or order an optic that just works in any light and under any conditions, the HS403C is engineered for your needs.
Standout Features
Solar Failsafe™ & Battery Power: The solar panel powers the reticle in sufficient light and acts as a backup, practically guaranteeing your red dot will always be visible. With up to 50,000 hours of battery life on a single CR2032 cell, downtime is minimized whether you’re on the range or in the field.
Smart Brightness: Auto mode uses ambient light to set the ideal reticle brightness. There are 12 manual settings (10 day, 2 night-vision) for complete control in any scenario.
Durable Construction: Made from 6061-T6 aluminum and rated IP67 waterproof, the HS403C can survive harsh weather, impacts, and rough handling.
User-Friendly Mounting: Comes standard with both low and lower 1/3 co-witness Picatinny mounts, making installation quick and versatile for different platforms.
Manual Controls: Digital buttons allow for easy brightness adjustments, giving you flexibility between manual override and solar/auto operation.
Technical Specifications Holosun HS403C
What is the difference between Holosun HS403C and HS403B?
When considering Holosun’s popular micro red dots, the key differences between the HS403C and HS403B are power source and control systems: