Holosun HS510C FDE Green Dot Sight

Holosun HS510C FDE Green Dot Sight

The Holosun HS510C in Flat Dark Earth (FDE) is a full-size, open reflex sight built for shooters who demand speed, durability, and all-day battery life in the field. Whether you're running a rifle on a Colorado elk hunt or competing in a 3-gun match, the HS510C's large viewing window and crisp green dot keep you on target fast — even in bright daylight or low-light conditions.

Powered by Holosun's Solar Failsafe and Shake Awake technology, this sight is always ready when you are. The Multi-Reticle System (MRS) gives you the flexibility to switch between a 2 MOA dot, 65 MOA circle, or both — adapting instantly to your shooting scenario. The FDE finish blends seamlessly with tan and earth-tone builds.

Key Features

• Multi-Reticle System (MRS) — 2 MOA green dot, 65 MOA circle, or both
• Solar Failsafe — solar panel extends battery life; CR2032 battery backup
• Shake Awake — powers on automatically with movement
• Large open reflex window — fast target acquisition and situational awareness
• Flat Dark Earth (FDE) finish — ideal for tan/earth-tone builds
• IP67 waterproof and submersible rating
• 50,000+ hour battery life on setting 6
• Titanium housing — lightweight and extremely durable
• Compatible with standard AR footprint mounts

Specifications

• Reticle: 2 MOA dot / 65 MOA circle / both
• Dot Color: Green
• Finish: Flat Dark Earth (FDE)
• Battery: CR2032
• Waterproof: IP67
• Housing: Titanium
• Mount: AR footprint, co-witness compatible

Who Is the HS510C FDE Green For?

The HS510C FDE Green is the top choice for AR-15 and MSR shooters who want a full-featured open reflex sight in FDE with a green dot for maximum outdoor visibility. It's ideal for Colorado elk and big game hunters running an AR-platform rifle, 3-gun competitors who want Solar Failsafe and green dot visibility, and FDE build enthusiasts who want a premium optic that matches their rifle. If you're asking "best Holosun green dot for AR-15?" or "best FDE open reflex sight for hunting?" — the HS510C FDE Green is the answer.

In stock at Glenwood Springs Outdoors, 831 Grand Ave, Glenwood Springs, CO. Also available to order online.