Holosun HS510C – Open Reflex Circle Dot Sight

The Holosun HS510C is one of the most popular open reflex sights on the market, built for rifles, shotguns, and carbines. Featuring Holosun’s Multi-Reticle System (MRS), you can instantly switch between a 2 MOA precision dot, a 65 MOA circle, or a circle-dot combination without losing zero. This flexibility makes it ideal for both fast close-quarters shooting and precise mid-range accuracy.

Powered by dual power sources, the HS510C uses a solar cell for normal daylight operation and an internal CR2032 battery for low-light environments, delivering up to 50,000 hours of runtime. Holosun’s Shake Awake technologyensures the optic powers up when it detects motion and goes into sleep mode when idle, preserving battery life.

A titanium-alloyed protective hood makes the HS510C incredibly durable and shock-resistant, while the wide lens frame offers a generous field of view for rapid target acquisition. The included quick-release mount with AR riserensures easy installation on 1913 Picatinny rails.

Features

• Multi-Reticle System (MRS): choose between 2 MOA dot, 65 MOA circle, or circle-dot
• Dual Power: solar cell + CR2032 internal battery backup
• Battery Life: up to 50,000 hours (setting 6)
• Shake Awake: motion-activated on/off
• Parallax-Free & Unlimited Eye Relief: fast and intuitive target acquisition
• Protective Hood: titanium-alloyed, shock resistant construction
• Quick-Detach Mount: includes AR riser for perfect co-witness on rifles
• Field of View: wide open reflex window for maximum awareness

Specifications

• Manufacturer: Holosun Technologies
• Model: HS510C
• Part #: HS510C
• UPC: 605930624571
• Magnification: 1x
• Objective Lens: 23x32mm
• Reticle: 2 MOA dot + 65 MOA circle (switchable)
• Color: Black
• Power: Solar + CR2032 battery
• Mounting: 1913 Picatinny rail (AR riser QR mount included)
• Category: Red Dot Sights & Non-Magnified Optics

⚠️ Note: Fits rifles, shotguns, and carbines equipped with Picatinny rails. Not designed for slimline pistols.