OLIGHT Osight SE Red Dot Sight, RMSc Footprint - Black

Osight SE Red Dot Sight by OLIGHT

Looking for a reliable RMR red dot sight that can handle everything from concealed carry to tactical operations? Need a fully enclosed design that stands up to rain, dust, and mud? Want a red dot sight with a precision reticle, aspherical lens, and side-loading battery? Then the Osight SE is made for you. The Osight SE offers outstanding durability and clarity. Its enclosed emitter design completely protects the internal optics from dirt and moisture, ensuring reliability in any environment. The aspherical lens delivers a distortion-free, crystal-clear image, while the Multi-Reticle system (2 MOA dot, 32 MOA circle, or both combined) allows you to adjust your aiming point to match your shooting style or distance. With its side-loading CR1620 battery tray, you can replace the battery in seconds without removing or re-zeroing the sight. The built-in motion sensor automatically activates the sight when moved and powers it down after 3 minutes of inactivity, extending runtime up to 75,000 hours. Thanks to its RMSc footprint and low-profile design, it mounts directly to compatible pistol slides and even co-witnesses with factory iron sights. Crafted from 7075-T6 aluminum, the housing is impact-resistant yet weighs only 27.5 g — perfect for duty carry, competition, or everyday use. The Osight SE is a sight that adapts to you — not the other way around.

Key Features

• Fully enclosed design:
  Protects internal optics from water, dust, and mud – ideal for professional use.
  
  
• Aspherical lens:
  Provides distortion-free, zero-parallax clarity with exceptional image sharpness.
  
  
• Multi-Reticle system:
  2 MOA dot, 32 MOA circle, or both combined for versatile shooting scenarios.
  
  
• Side-loading battery:
  Quick CR1620 battery change without removing the optic, keeping zero intact.
  
  
• Motion sensor:
  Auto-on when moved, auto-off after 3 minutes of inactivity to save power.
  
  
• Durable housing:
  CNC-machined 7075-T6 aluminum with hard anodizing and IPX7 waterproof rating (1 m depth).
  
  
• Low-profile design:
  Compatible height for co-witness with factory sights, ideal for concealed or duty carry.

Technical Specifications

• Reticle type: 2 MOA dot, 32 MOA circle (independent or combined)
• Reticle color: Red (650 nm)
• Brightness settings: 8 daylight + 2 NV
• Power supply: 1× CR1620 (not included)
• Battery life: Up to 75,000 hours (Mode 3 – dot only)
• Parallax: Free
• Eye relief: Unlimited
• Adjustment per click: 1 MOA
• W&E range: ±35 MOA
• Lenses: Fully multi-coated (FMC)
• Body material: CNC 7075-T6 aluminum
• Waterproof rating: IPX7 (submersion up to 1 m)
• Dimensions: 40.4 × 25 × 24.7 mm
• Weight: 27.5 g
• Mount: RMSc footprint (compatible with Glock MOS / OR slides)
• Motion sensor: Yes (3-min auto-off)
• Memory function: Yes (retains last brightness setting)

Package Includes

• OLIGHT Osight SE red dot sight
• Mounting hardware (RMSc screws)
• Cleaning cloth
• User manual