Holosun HS403R Red Dot Sight

The Holosun HS403R is a compact 20mm micro red dot sight designed for rifles and carbines. Featuring a rotary switch for reticle brightness control, this optic provides fast and intuitive adjustments with 10 daylight and 2 night vision-compatible settings. Its 2 MOA red dot reticle ensures precise aiming, while the Red Super LED delivers up to 100,000 hours of battery life on a single CR2032 cell.

Built with a durable cast aluminum housing and finished with MAO coating, the HS403R offers rugged reliability in the harshest environments. It is IP67-rated for water resistance, vibration-tested up to 1000G, and operates in extreme temperatures. The optic comes with both a lower 1/3 co-witness mount (1.63") and a low mount (0.75"), making it versatile for different rifle setups.

With parallax-free optics, unlimited eye relief, and a lightweight construction of only 100g (3.53 oz), the HS403R is a trusted red dot for professionals and enthusiasts alike.

Key Features:

• 2 MOA Red Dot Reticle
• Rotary dial with integrated battery compartment
• Up to 100,000 hours battery life (CR2032)
• 12 brightness settings (10 daylight, 2 NV)
• Durable cast aluminum housing with MAO finish
• Parallax-free & unlimited eye relief
• Includes low mount (0.75") and lower 1/3 co-witness mount (1.63")
• IP67 waterproof & tested to 1000G vibration

The Holosun HS403R delivers exceptional durability, long battery life, and versatile mounting options—making it a reliable red dot sight for rifles, carbines, and tactical applications.