Osight K-RD Red 6 MOA Open Reflex Sight — RMSc Footprint
Product Description:
The Osight K-RD Open Reflex Sight is a rugged, lightweight reflex optic engineered for fast target acquisition and reliable performance on compact and subcompact firearms with the RMSc footprint. Designed for everyday carry, defense, and range use, this optic features a bold 6 MOA red dot reticle that provides quick visual alignment while maintaining a clear sight picture for close-to-mid-range engagements.
Its open-emitter design gives an expansive field of view, allowing shooters to stay aware of their surroundings while tracking moving targets or transitioning between threats. Easy to install and adjust, the K-RD is built on the RMSc footprint to fit a broad ecosystem of pistols and mounting plates without adapters, and its side-loading battery tray simplifies maintenance without sacrificing zero.
The Osight K-RD blends simplicity with proven reflex sight performance, making it an excellent option for concealed carry guns and compact slides where rapid, instinctive aiming is crucial.
Product Features:
• Fast Target Acquisition:
The bold 6 MOA red dot provides an intuitive aiming point for rapid engagement, ideal for close-range defensive applications and dynamic shooting scenarios.
• Open Reflex Field of View:
The expansive viewing window and open design help maintain situational awareness with minimal obstruction for rapid transitions and tracking.
• Motion-Activated Power:
Automatically powers on the sight when motion is detected and conserves battery when idle, extending overall runtime.
• Easy Maintenance:
The side-loading battery tray allows CR1620 replacement without removing the optic from the firearm — preserving zero and saving time at the range.
• Rugged Durability:
CNC-machined aluminum housing and IPX6 water resistance ensure reliable performance under field conditions, recoil, and everyday carry use.
• Broad Platform Compatibility:
RMSc footprint fits a wide range of optics-ready compact and subcompact pistols without adapter plates.
Product Specifications:
| Attribute |
Detail |
| Model |
Osight K-RD Open Reflex Sight |
| ASIN |
B0FKGKB929 |
| Footprint |
RMSc (Shield RMSc / Leupold Deltapoint Pro compatible) |
| Reticle |
6 MOA Red Dot |
| Brightness Settings |
Adjustable manual brightness levels |
| Battery |
CR1620 (side-loading, included) |
| Battery Life |
Long runtime (varies by brightness setting) |
| Lens Window |
Approx. 0.83 × 0.55 in |
| Adjustments |
1 MOA per click |
| Windage/Elevation Range |
±45 MOA |
| Housing |
CNC-machined aluminum |
| Water Resistance |
IPX6 |
| Dimensions |
~1.59 × 0.98 × 0.98 in |
| Weight |
~29 g (1.02 oz) |
| Parallax |
Parallax-free |
| Eye Relief |
Unlimited |
