Holosun Open Reflex HS510C FDE collimator

The Holosun Open Reflex HS510C FDE is an advanced collimator sight designed for long guns and built to withstand harsh conditions. Its open design features a titanium optics housing, making it highly durable and well-protected.

Constructed with precision milling from 6061 aluminum, the body of the sight is sturdy and reliable. The device is equipped with a Quick Detach (QD) buckle for easy attachment and removal, allowing for quick mounting on a Picatinny rail (absolute co-witness height). The sight boasts an anodized Flat Dark Earth finish, adding to its appeal.

The optics of the Holosun Open Reflex HS510C are exceptional. It utilizes lenses coated with multi-layer anti-reflective coatings, ensuring high light transmission and delivering a clear and parallax-free image.

One of the standout features is its Multi Reticle System, which enables users to customize the size and style of the aiming mark. Whether you prefer a classic 2 MOA dot, a 65 MOA circle, or a combination of both, this collimator sight has you covered. This versatility makes it suitable for various applications, including hunting, sport shooting, and tactical use.

The electronic system of the sight is robust and reliable. Switching between reticles does not affect zeroing since all aiming marks are emitted by a single diode. The control system and diode are designed to withstand shock, weapon recoil, and adverse weather conditions, ensuring consistent performance even in challenging hunting environments.

For power supply, the Holosun Open Reflex HS510C relies on a CR2032 battery. According to the manufacturer, the battery can provide up to an impressive 50,000 hours of operation at a brightness setting of level 6. Additionally, the device incorporates a Solar Failsafe panel that automatically adjusts the brightness of the aiming mark in strong light conditions and acts as a backup power source when the battery is depleted.

To enhance battery life further, the sight features the Shake Awake system. When no activity is detected, the LED automatically turns off, and the device enters sleep mode. Reactivating the aiming mark is as simple as moving the weapon. Users have the flexibility to define the duration after which the sleep mode activates, optimizing battery conservation.

Here are the technical specifications of the Holosun Open Reflex HS510C FDE:

• Magnification: 1x
• Max. operating time: 50,000 hours
• Reticle: 65 MOA circle + 2 MOA dot, 65 MOA circle, spot
• IP protection class: IP67
• Power supply: CR2032 x 1
• Housing material: Anodized duralumin
• Max vertical adjustment: 40 MOA
• Max horizontal adjustment: 40 MOA
• Spot size: 2 MOA
• Overall height: 65 mm
• Overall length: 85 mm
• Weight: 205 g
• Width: 40 mm

Included in the collimator set are an optics cleaning cloth, an allen wrench, and a battery. The Holosun Open Reflex HS510C FDE is manufactured by Holosun in the USA, with the supplier symbol 17618.