Holosun HS510C‑FDE Open Reflex Solar Red Dot Sight MRS 2 MOA Red Dot 65 MOA Circle Weaver / Picatinny

Holosun HS510C‑FDE Open Reflex Solar Red Dot Sight MRS 2 MOA Red Dot 65 MOA Circle Weaver / Picatinny

The Holosun HS510C‑FDE is a compact, open‑reflex red dot sight designed for European sport shooters and hunters who value durability, fast target acquisition, and long‑term reliability. Built around Holosun’s Multiple Reticle System (MRS), the HS510C‑FDE offers a 2 MOA red dot plus a 65 MOA circle, giving you instant flexibility between a clean, precise aiming point and a fast, ring‑assisted sight picture. The compact, 1× non‑magnified housing is engineered for long‑gun platforms, with a rugged 7075 T6 aluminum body, a titanium hood, and a QD absolute‑co‑witness mount that fits standard Weaver / Picatinny rails without interfering with the sight path.

Powered by a CR2032 battery and an integrated solar cell, the HS510C‑FDE uses Holosun’s Solar Failsafe technology: the optic can run solely on ambient light and automatically falls back to the battery when light levels drop, greatly extending real‑world runtime. Combined with Shake‑Awake motion‑sensing power management, which puts the optic to sleep after inactivity and restores it instantly with small movements, the HS507C achieves an effective 50,000‑hour battery life on mid‑brightness settings. This means European sport shooters and hunters can leave the HS510C‑FDE powered on between training sessions and field trips with very few battery changes.

The HS510C‑FDE is parallax‑free with unlimited eye relief, supports night‑vision compatibility (2 NV‑compatible brightness levels plus 10 daytime settings), and includes a windage‑elevation range of ±50 MOA with 0.5 MOA clicks, making it precise enough for medium‑range target work and versatile enough for dynamic, close‑range scenarios. The 32 × 24 mm objective window, multi‑coated lenses, and sealed IP67 body ensure consistent performance in rain, dust, and temperature extremes from –30 °C to +60 °C. For European buyers, Holosun Croatia offers this FDE‑colored sand‑tone optic as an official EU warranty product from an authorized Holosun dealer, with fast shipping from Split, Croatia, to the EU. Whether you use it for sport‑oriented drills, driven‑game‑style situations, or still‑hunting‑style stalking, the HS510C‑FDE is a practical, field‑tough reflex optic that balances speed, precision, and efficiency.

Technical specifications Holosun HS510C‑FDE

Frequently asked questions

What is the battery life of the Holosun HS510C‑FDE, and how does it work with the solar panel?
The Holosun HS510C‑FDE runs on a CR2032 battery plus an integrated solar panel, giving it Holosun’s Solar Failsafe capability. Under normal use at mid‑brightness, the battery‑only runtime is rated up to about 50,000 hours, which translates to many years between battery changes. The solar panel can keep the optic running on light alone when the environment is bright, and only draw on the battery when light levels drop, greatly extending the practical lifespan. Combined with Shake‑Awake motion‑sensing power‑down when the device is idle, users can leave the HS510C‑FDE powered on without worrying about draining the battery quickly. This dual‑power setup makes the HS510C‑FDE a very energy‑efficient reflex optic for European sport shooters and hunters.

Does the Holosun HS510C‑FDE support night‑vision devices and different reticle modes?
Yes, the Holosun HS510C‑FDE has 2 NV‑compatible brightness levels and 10 daylight levels, making it suitable for use with night‑vision equipment in low‑light conditions. The optic also features Holosun’s Multiple Reticle System (MRS), allowing users to toggle between dot‑only, circle‑only, or dot‑plus‑circle modes with a single long‑press of the brightness button. This lets you switch from a fast 65 MOA ring‑assisted picture for close‑range targets to a clean 2 MOA dot for more precise aiming, all without changing the mount or optics. European hunters and sport shooters appreciate this flexibility when moving between open‑field and wooded environments, where quick target acquisition and detailed placement are both important.

Is the Holosun HS510C‑FDE durable enough for European field use and harsh weather conditions?
Yes, the Holosun HS510C‑FDE is designed for demanding outdoor use, with a rugged 7075 T6 aluminum housing, a titanium hood for extra shock protection, and IP67‑rated sealing that allows submersion up to 1 meter. The optic is rated for temperatures from –30 °C to +60 °C, and it can handle rain, heavy dust, and rough handling without losing zero or optical clarity. The compact but strong design keeps the overall weight at 207 g (with mount), which helps balance rail‑mounted platforms without adding unnecessary bulk. For European sport shooters and hunters, the HS510C‑FDE is a dependable, long‑term reflex optic that performs consistently across mixed terrain and mixed weather.

How easy is it to mount the HS510C‑FDE on a rail and replace the battery?
The Holosun HS510C‑FDE mounts directly to Weaver / Picatinny rails via a QD absolute‑co‑witness mount that is low‑profile and does not obstruct the sight window. The quick‑detach nature of the mount allows for fast installation and removal, which is useful when switching between platforms or storing the optic. The CR2032 battery is housed in a side‑loaded tray that slides out without removing the optic from the rail, making battery replacement quick and practical for field users and competition‑oriented shooters. As an authorized Holosun dealer, Holosun Croatia can advise on the best mounting setup and can manage the official EU warranty service if needed, all without requiring shipment outside the EU.

Why should I choose a Holosun HS510C‑FDE over a simpler red dot sight?
The Holosun HS510C‑FDE offers several advantages over basic red dots: multi‑reticle flexibility (MRS), solar‑backup power, Shake‑Awake‑based power management, high‑level durability, and night‑vision compatibility. The 2 MOA dot and 65 MOA circle give you both precision and speed, while the solar‑powered Solar Failsafe system and 50,000‑hour typical runtime greatly reduce the need for frequent battery changes. The robust, weather‑sealed body and precise 0.5 MOA click adjustments make it suitable for both casual sport shooting and serious field use. For European users who want a modern, solar‑assisted reflex optic that is practical for hunting‑style and competition‑driven scenarios, the HS510C‑FDE is a strong choice.