The Holosun Red Dot HS403B is a compact collimator sight with a closed design, equipped with an aluminum housing, Shake Awake battery saving system and two mounting bases. The Holosun Red Dot HS403B is designed for the use of long guns, among others.such as AR15 carbines or semi-automatic rifles. The Holosun Red Dot HS403B uses lenses coated with multi-layer anti-reflective coatings, which provide high light transmission and a clear and sharp image free of parallax error. The model comes in FDE (sand) color .
Features of the Red Dot HS403B FDE collimator:
- High quality construction of the collimator using lightweight 6061-T6 aluminum.
- Elimination of parallax error phenomenon.
- It is equipped with a 2 MOA dot.
- Shake-Awake collimator buckling system, when manipulating the weapon or firing.
- Diode and control system resistant to 1000 G overloads.
- Mounted on a slide-out tray, secured with two Torx screws.
- Compatible with Picantinny/Weaver 22mm rails.
Lightweight aluminum construction
The body of the sight is made of 6061-T6 aluminum using a precision-milling method, and the unit has a lightweight and durable design weighing just 124 g. The Holosun Red Dot HS403 features "stable zero holding," has no parallax error, and its optics provide unlimited eye relief, making it suitable for use on sporting rifles, AR carbines and hunting weapons.
The electronic system of the Red Dot HS403B collimator
The control system and diode are resistant to shock (1000 G), weapon recoil and weather conditions, making the device work efficiently and stably on hunting and sporting weapons. The sight uses a 2 MOA red dot aiming point, which is great for dynamic and precise shooting.
Battery saving system
Theimpressive battery life of up to 50,000 hours is due to the Shake Awake system , which automatically turns off the LED when there is no movement, and the device goes into sleep mode. Re-activating the aiming mark requires only moving the weapon. The user can independently define the time after which the sleep mode is activated.
Convenient battery power supply
An element that many shooters pay a lot of attention to is the way the battery is mounted. In the Holosun Red Dot HS403B, the battery is mounted on a sliding tray, secured by two Torx screws. Such functionality allows changing the battery without removing the collimator from the weapon, as is the case with models with the battery located on the underside.
Two types of mounts included
The set includes two mounts for the Picatinny/Weaver rail: a high one (1/3 co-witness) intended mainly for carbines and a low one recommended for rifles.
