Olight - Osight 3 MOA Rechargeable Dot Open Reflex Sight

A red dot optic built for shooters who need reliable battery life and confirmed zero retention. The Olight Osight pairs the optic with a magnetic charging cover, giving a battery percentage display for both the optic and cover so battery status is never a guess. It suits range use, hunting and any application where consistent zero and long runtime matter. The optic uses the industry-standard RMR/507c footprint, making it compatible with a wide range of existing mounts and adaptor plates.

The 3 MOA dot is clear and fast to acquire, viewed through a 0.94 x 0.85 inch lens designed to hold a clear sight picture under recoil. The optic maintained zero through a 10,000-round field test. Battery life extends to over 70,000 hours on the lowest setting and over 17 days on the brightest setting, extending to over 70 days with a fully charged charging cover. A motion and light sensor automatically powers the unit down after 10 minutes of inactivity and wakes instantly on movement, with auto-sensing, manual and lockout modes covering 10 daylight and 2 night brightness levels. Mounting screws require torque to 17 in-lbs; if using an adaptor plate, follow the plate manufacturer's torque and threadlocker instructions exactly, as incorrect torque can cause loss of zero or mount failure.

Features

• Magnetic Charging Cover with Battery Display: Shows battery percentage for both the cover and optic, with a tri-colour indicator on the optic itself as a backup.
• 3 MOA Dot with Large Lens Window: 0.94 x 0.85 inch lens holds a clear sight picture under recoil, with a 3 MOA dot for fast acquisition.
• Proven Zero Retention: Maintained zero calibration through a 10,000-round field test.
• Motion and Light Sensor: Auto-sensing mode adjusts brightness automatically, with manual and lockout modes offering 10 daylight and 2 night levels; powers down after 10 minutes of inactivity and wakes instantly.
• Industry-Standard Mounting Footprint: Uses the RMR/507c footprint for compatibility with common mounts and adaptor plates.
• Extended Runtime with Charging Cover: Over 70,000 hours on lowest mode, 17+ days on brightest mode, extending to 70+ days with a fully charged charging cover.
• Correct Torque Critical to Performance: Mounting screws require 17 in-lbs torque; using an adaptor plate requires following that manufacturer's specific torque and threadlocker instructions to avoid loss of zero.

Specifications

• Reticle: 3 MOA dot
• Lens Size: 0.94 x 0.85 inches
• Mounting Footprint: RMR/507c (industry-standard)
• Torque Specification: 17 in-lbs per screw
• Runtime (Lowest Mode): 70,000+ hours
• Runtime (Highest Mode): 17+ days, extending to 70+ days with charging cover
• Battery Display: Percentage display on charging cover, tri-colour indicator on optic
• Modes: Manual, lockout, auto-sensing (10 daylight levels, 2 night levels)
• Sensor: Motion and light sensor, auto power-off after 10 minutes