OLIGHT Osight SE RED 6 MOA enclosed red dot sight in black uses a compact RMSc footprint and a prominent 6 MOA red dot for fast target acquisition. It features an enclosed emitter, 21 × 14 mm aspherical lens, motion sensor, 8 daytime and 2 NV brightness levels and a side-loading CR1620 battery. The CNC-machined 7075-T6 aluminium body weighs just 27.5 g and has an IPX7 rating.

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This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.OLIGHT Osight SE RED 6 MOA is a compact enclosed red dot sight (Enclosed Emitter) with an RMSc footprint mounting standard. It is designed primarily for sub-compact and slimline pistols and slides prepared for mounting optics with the corresponding interface. The enclosed design protects the emitter from water, dust and dirt that can interfere with the beam path in open red dot sights. This version uses a single 6 MOA red dot. The larger aiming point makes the dot easier to acquire and is more forgiving of less precise optic alignment during rapid aiming. Brightness can be adjusted across a total of 10 levels, including 8 for daytime use and 2 for NV. The wavelength of the red light is 650 nm. The Osight SE features an aspherical lens with a 21 × 14 mm window and a multi-layer coating. According to the manufacturer, it provides a distortion-free image, parallax-free operation and unlimited eye relief. Elevation and windage adjustment offer a range of ±35 MOA, and one click of the adjustment mechanism equals 1 MOA. Power is supplied by a CR1620 battery located in a side-loading compartment (battery not included). This means the red dot sight does not need to be removed or its mounting position changed when replacing the battery. The motion sensor automatically activates the red dot sight when movement is detected and switches it to sleep mode after 3 minutes of inactivity. It also features a memory function for the last selected mode and a low battery voltage warning. The body is CNC-machined from 7075-T6 aircraft-grade aluminium. The Osight SE measures just 40.4 × 25 × 24.7 mm and weighs 27.5 g, helping to maintain the compact dimensions of the entire setup. The construction offers IPX7 water resistance and an operating temperature range from -30 to 60 °C.
The prominent 6 MOA red dot allows fast acquisition of the aiming point and more forgiving alignment during rapid aiming. There are 8 daytime and 2 NV brightness levels available.
The fully enclosed design protects the emitter from water, dust and dirt. This keeps the path between the emitter and lens protected.
The compact RMSc footprint allows mounting on slides and mounting interfaces designed for this standard. Other interfaces may require a corresponding adapter plate.
The side battery compartment allows the CR1620 to be replaced without removing the red dot sight. The mounting position of the optic therefore remains unchanged during routine battery replacement.
The motion sensor activates the red dot sight when movement is detected and puts it into sleep mode after 3 minutes of inactivity. According to the manufacturer, the 21 × 14 mm aspherical lens provides a distortion-free and parallax-free image.
Demonstration of the compact OLIGHT Osight SE enclosed red dot sight.
ANAREUS tip: When mounting, always select the correct screws for the specific slide or mounting plate and observe the prescribed tightening torque. The RMSc footprint itself does not automatically mean direct compatibility with every pistol labelled Optics Ready; the specific mounting interface of the slide is what matters.
This version uses a single 6 MOA red dot. It is therefore not a Multi-Reticle version with switching between a dot and circle. The larger 6 MOA dot is designed primarily for fast acquisition of the aiming point.
The red dot sight uses an RMSc footprint designed for compact optics. The red dot sight can be installed directly on a slide with a corresponding RMSc interface, while other mounting systems may require a suitable adapter plate.
No. The CR1620 battery is located in a side-loading compartment. Replacing it therefore does not require removal of the red dot sight and does not change its mounting position.
The motion sensor activates the red dot sight when movement is detected. After 3 minutes of inactivity, the optic enters sleep mode and reactivates when movement is detected again, helping to conserve battery power.
The red dot sight features a low-voltage indicator. If the battery voltage drops below 2.2 V, the dot flashes rapidly three times and the warning then repeats at one-minute intervals. The CR1620 battery should then be replaced.
| Variants | Osight SE RED 6 MOA |
| Body/receiver material | Metal |
| Mounting System | RMSc |
| Footprint | RMSc |
| Battery included | NO |
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