Holosun HS407C-X3-RD Open Reflex Red Dot Sight + red 2MOA Dot Reticle, 100,000‑h Runtime, Solar Cell, black, Hunting, Sport Shooting Airsoft

Holosun HS407C‑X3‑RD Open Reflex Red Dot Sight – 2 MOA with Solar‑Assist & 100,000‑h Runtime

The Holosun HS407C‑X3‑RD open reflex red dot sight is a compact, lightweight pistol‑style open‑reflex sight measuring 45×28×33 mm and weighing 44 g, designed for handguns, carbines, and airsoft platforms using a Trijicon RMR‑footprint rail. It features a bright 2 MOA red dot delivered by an LED with a 16×23 mm exposed window, offering fast, intuitive target acquisition without magnification or optical power. The clear, high‑quality glass and simple 1× non‑magnified design let users keep both eyes open, which is ideal for sport shooting, hunting‑style pistol‑use, and airsoft scenarios where speed and situational awareness matter more than zoomed‑in optics.

HS407C X3 vs HS407C X2 Series

At the heart of the HS407C‑X3‑RD is the Solar Failsafe™ system: a front‑facing photodiode automatically adjusts brightness based on ambient light, working alongside the 3 V CR1632 lithium battery to keep the 2 MOA red dot visible and stable. When light levels change, the system smoothly shifts between solar‑assisted and battery‑driven brightness so the dot never simply fades out. The Shake Awake™ motion‑sensing function keeps the dot in low‑power standby when the optic is idle and wakes it instantly with small movement, together extending the effective battery life to about 100,000 hours at typical use. The sight uses 12 brightness levels (10 daylight, 2 night‑vision‑compatible) for manual override when needed, while the hard‑anodized 7075‑T6 aluminum housing with IP67 rating delivers impact‑ and weather‑resistance that suits rough everyday use and field conditions.

Advantages of the Holosun HS407C‑X3‑RD

• Delivers a 2 MOA red dot within a compact 45×28×33 mm open‑reflex housing that is highly effective for fast, close‑range aiming on pistols, carbines, and airsoft replicas.
• Uses solar‑assisted Solar Failsafe™ and Shake Awake™ to extend CR1632 battery life to about 100,000 hours, reducing the need for frequent battery changes.
• Provides 12 brightness levels (10DL + 2NV) with manual override, so you can fine‑tune the dot intensity for bright sun, shaded woods, or low‑light/target‑light scenarios.
• Built with 7075‑T6 aluminum and hard‑anodized finish, rated IP67, and able to withstand 5000G of vibration, making it suitable for both sport‑oriented and utility‑style platforms.
• Features embedded X/Y adjustment turrets with ±30 MOA range and 1 MOA per click, protected by a sealed recessed design, so zeroing is precise and durable even under field conditions.
• Sits at a line‑of‑sight height of 16.5 mm, matching most RMR‑style setups, with a Trijicon RMR‑compatible footprint and Torx‑style mount, allowing straightforward installation on many modern pistol slides and rail‑top platforms.

• Offers parallax‑free performance from 25 m onward, clear eye relief, and 1× view, making it easy to keep both eyes open and maintain situational awareness.
• Comes with a practical accessory kit (lens cloth, Torx T10, battery‑tool, 2×CR2032, notes cards, warranty brochure) that simplifies maintenance, setup, and record‑keeping.

Technical Specifications – Holosun HS407C‑X3‑RD

Frequently asked questions

FAQ – Holosun HS407C‑X3‑RD Open Reflex Red Dot Sight

How long does the Holosun HS407C‑X3‑RD red dot sight battery last?
The Holosun HS407C‑X3‑RD open reflex red dot sight uses a CR1632 3 V lithium battery and Holosun typically specifies up to 100,000 hours of runtime at moderate brightness when combined with the Solar Failsafe™ illumination system and Shake Awake™ motion‑sensing feature. In practical use this can translate to multiple years of operation with very few battery changes, even for frequent sport‑shooting or regular field use. The solar‑assist element helps keep the 2 MOA red dot active when light is available, reducing the load on the battery, while the Shake Awake function switches the optic into low‑power standby when not in motion. This makes the HS407C‑X3‑RD a very efficient reflex optic that stays ready‑to‑go across many European hunting and shooting seasons.

What reticle system does the Holosun HS407C‑X3‑RD use?
The Holosun HS407C‑X3‑RD open reflex red dot sight uses a 2 MOA red dot reticle in a simple, non‑magnified 1× optical system designed for quick and repeatable aiming at a wide range of distances. The dot is generated by a 650 nm LED with multi‑coated glass, providing a clear, high‑contrast reference point that remains stable and parallax‑free from 25 m onward. The optic supports multiple brightness levels, including daylight‑optimized and low‑light‑compatible settings, so users can adjust the dot intensity to match ambient conditions while keeping the point sharp and easy to pick up. Unlike some Holosun models with the Multi‑Reticle System (MRS), the HS407C‑X3‑RD keeps the design focused on a single 2 MOA red dot, which many European sport shooters and hunters prefer for its simplicity and fast target acquisition.

How does the Holosun HS407C‑X3‑RD red dot differ from green‑dot versions?
The Holosun HS407C‑X3‑RD red dot sight is offered in a red‑dot configuration, while Holosun also supplies equivalent open‑reflex optics in green‑dot variants that share the same RMR‑compatible footprint and layout but differ only in LED color. Red‑dot reflex optics like the HS407C‑X3‑RD generally provide slightly better battery efficiency, since red LEDs consume less power and the dot can appear less visually intense in bright daylight, which some users find less fatiguing over long sessions. Green‑dot optics, on the other hand, often appear brighter and more vivid in shaded or forest‑type environments, which can help users spot the aiming point more easily under canopy or low‑contrast conditions. Both green and red versions deliver the same 2 MOA‑sized point, unlimited eye relief, and parallax‑free performance, so the choice mainly comes down to personal preference and the lighting conditions you expect in European sport‑shooting and hunting scenarios.

How durable and weather‑resistant is the Holosun HS407C‑X3‑RD reflex optic?
The Holosun HS407C‑X3‑RD red dot sight is built with a 7075‑T6 aluminum housing, hard‑anodized matte‑black finish, and an IP67 environmental‑protection rating, making it highly resistant to dust, water immersion, and mechanical shock. The optic is designed to maintain a consistent, repeatable zero even when exposed to recoil‑like forces and vibration up to 5000G, which is suitable for daily‑carry‑style platforms, training, and field‑use. The open‑reflex design keeps the profile compact while still allowing generous eye relief and a wide field of view, which is helpful in dynamic shooting or mixed‑terrain hunting. For European sport shooters and hunters, this means the HS407C‑X3‑RD can handle rain, humidity, and temperature fluctuations from –10 °C to +50 °C without noticeable loss of performance, giving it the robustness needed for long‑term use in varied outdoor conditions.

What platforms and accessories is the Holosun HS407C‑X3‑RD compatible with?
The Holosun HS407C‑X3‑RD open reflex red dot sight uses a Trijicon RMR‑compatible footprint and Torx‑style mount, which makes it compatible with a broad range of platforms that accept this rail interface, including many modern pistol‑style platforms, carbines, and rail‑top adapters found in European sport‑shooting and hunting setups. The 16.5 mm line‑of‑sight height pairs well with common co‑witness arrangements and rail‑height standards, while the compact size and 16×23 mm window keep the optic low‑profile and easy to pair with flip‑to‑side magnifiers and rail‑guards. The optic can be combined with standard rail‑style mounts, rail‑top risers, and typical rail‑guard systems, allowing shooters to fine‑tune eye relief and sight‑picture. As an authorized Holosun dealer in Croatia, Holosun Croatia can help you choose the right rail‑based configuration and mounting hardware to keep the HS407C‑X3‑RD stable and balanced on your specific platform.

What warranty does Holosun provide for the HS407C‑X3‑RD in the EU?
Holosun provides an official EU warranty on the Holosun HS407C‑X3‑RD red dot sight through its European support network and authorized Holosun dealers, including Holosun Croatia. The standard warranty typically covers defects in materials and workmanship, including the glass, LED illumination, and key electronic components, for several years from the original retail purchase date when used under normal personal‑use conditions. The HS407C‑X3‑RD also benefits from Holosun’s long‑term illumination‑system coverage, which extends protection for the red‑dot reticle in typical field‑use scenarios. As an authorized Holosun dealer in Croatia, Holosun Croatia can handle warranty claims, inspection support, and coordination without requiring you to ship the optic outside the EU, giving European sport shooters and hunters confidence that any manufacturing‑related issues can be resolved through an official EU‑based channel backed by the official EU warranty.

Is the Holosun HS407C‑X3‑RD suitable for European hunting and sport shooting?
Yes, the Holosun HS407C‑X3‑RD open reflex red dot sight is well suited to European hunting and sport‑shooting applications thanks to its compact size, bright 2 MOA red dot, and simple, robust design. The 2 MOA dot provides enough precision for medium‑range shots, while the non‑magnified, reflex‑only configuration supports fast target acquisition at close to mid‑ranges typical of European forests, mixed‑terrain areas, and sport‑shooting ranges. The sealed, durable housing and solar‑assisted battery system allow it to perform reliably across a wide range of light and weather conditions, from cold winter mornings to humid spring days. European hunters and sport shooters can use the HS407C‑X3‑RD for driven‑game‑style scenarios, still‑hunting‑style stalking, or structured training drills, and the optic’s intelligent brightness control and long battery life make it a practical reflex optic for extended outdoor use.

Can the Holosun HS407C‑X3‑RD be used in combination with other optics or accessories?
The Holosun HS407C‑X3‑RD open reflex red dot sight is designed to work well with a range of common accessories without compromising its performance or zero. Its 1× view, parallax‑free design, and unlimited eye relief make it compatible with many flip‑to‑side magnifier designs when mounted on compatible rail‑top platforms, allowing users to add optical magnification when needed without fully rebuilding the setup. The compact RMR‑footprint and low‑profile design also make it easy to pair with rail‑guards, rail‑top risers, and standard rail‑style mounts commonly used in European sport‑shooting organizations. The optic can be used alongside other targeting tools such as rail‑mounted sighting aids and support‑equipment configurations, and its solar‑assist and Shake Awake features keep the red dot ready over long periods without constant manual adjustment.