Description
Osight SE RD Features and Performance
The Osight SE RD is an enclosed reflex pistol optic built for shooters who want a compact footprint, protected emitter design, and a flexible multi-reticle system for concealed carry, range use, and general defensive handgun setups. Designed around the RMSc footprint, this optic mounts directly to many optics-ready slides while keeping a low-profile form factor that works especially well on slim and compact pistols.
One of the standout features of the Osight SE RD is its multi-reticle system. Shooters can switch between a precise 2 MOA dot, a bold 32 MOA circle, or the combined circle-dot reticle depending on preference and shooting application. That flexibility makes it useful for fast close-range shooting while still giving the user a cleaner aiming point for more deliberate shots when needed.
The Osight SE RD also includes practical features that make it easy to live with on a working handgun. Its side-loading CR1620 battery allows battery changes without removing the optic, helping preserve zero, while the motion sensor function powers the optic on with movement and helps conserve battery during inactivity. The enclosed emitter design also adds protection from dust, debris, and moisture compared to open-emitter pistol optics.
Built with CNC-machined 7075 aluminum and paired with an aspherical lens, the Osight SE RD is designed for dependable daily use while maintaining a clear, distortion-free sight picture. With 8 daylight and 2 night vision brightness settings, unlimited eye relief, and a compact enclosed profile, it is a strong option for shooters looking for a modern enclosed red dot pistol optic with broad RMSc compatibility. For more optics and firearm accessories, visit our accessories collection.
To learn more about manufacturer specifications and product information, see Osight’s official product page before use.
Details
- Reticle: 2 MOA Dot & 32 MOA Circle
- Reticle Color: Red
- Emitter: Enclosed
- Light Wavelength: 650 nm
- Magnification: 1x
- Lens: Aspherical, Multi-Coated Glass
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Adjustment per Click: 1 MOA
- W&E Travel Range: ±35 MOA
- Battery Type: CR1620
- Battery Style: Side-Loading
- Battery Life: Up to 75,000 Hours (Mode 3 / Dot Only)
- Brightness Settings: 8 Daylight & 2 Night Vision
- Motion Sensor Function: Yes
- Window Size: 21 x 14 mm
- Dimensions: 1.59″ x 0.98″ x 0.97″
- Housing Material: 7075 Aluminum
- Waterproof Rating: IPX7
- Footprint: RMSc








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