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OSIGHT C red dot sight with red reticle illumination from OLIGHT in black.
RMR footprint for mounting on pistols or RIS adapters.
Open red dot sight with a large window.
Multi-Reticle system (3 MOA dot, 32 MOA circle, or combined).
Side-loading CR1632 battery without losing zero.
Lightweight and durable 7075 aluminum with IPX6 protection.
Motion sensor (3 min auto-off).
BAT00123
CR1632 Lithium Power 3V Button Cell Battery from Panasonic. Suitable for red dot sights (e.g. Vector Optics FRENZY), rifle scopes, outdoor watches, and other electronics. Reliable power source. Long-lasting and high-quality battery. Also known as BR1632, DL1632, ECR1632, KCR1632, LM1632. Single-use battery (do not recharge).
Are you looking for a compact red dot sight with an RMR mount (footprint) that delivers fast target acquisition and precise aiming? Do you need a red dot sight with easy battery replacement directly in the field? Want a red-illuminated reticle for CQB as well as precision shooting? Then OSIGHT C is the right choice. It combines simplicity with top-tier build quality, highlighted by a large 24 × 19 mm window that offers a wide field of view for fast target acquisition, while the bright and crisp reticle (red 3 MOA dot, 32 MOA circle, or both) delivers speed and precision depending on the situation. The side-loading CR1632 battery allows quick replacement without re-zeroing. The 7075-T6 aircraft-grade aluminum construction with Type III hard anodizing provides excellent impact and wear resistance. IPX6 protection and a motion-activated sensor (3 min auto-off) help save battery life and ensure the optic is always ready. The lenses feature fully multi-coated (FMC) optics for higher light transmission and improved contrast in low light. Thanks to the standard RMR footprint, OSIGHT C can be mounted directly on compatible pistol slides.
OSIGHT C red dot sight overview

Reticle options overview
| Color | Black |
| Body/receiver material | Metal |
| Battery type | CR1632 |
| Battery included | NO |