O-Fan Day 2025 | Osight New Optics: Fast. Smart. Always Ready
In the world of modern firearm optics, two remarkable contenders are setting new standards for performance and versatility. The Osight C emerges as a high-value open reflex sight engineered for exceptional performance across diverse shooting disciplines, while the Osight K delivers compact, high-performance capabilities perfect for rapid engagements. Both optics represent the cutting edge of reflex sight technology, offering shooters unprecedented clarity, reliability, and intuitive operation.
Whether you're a competitive shooter seeking pinpoint accuracy or a professional requiring lightning-fast target acquisition in high-stress situations, these sights are designed to excel where it matters most. Join our exclusive event to see these innovations in action and enjoy the lucky wheel. Don't miss this chance to experience the future of tactical excellence firsthand!
Osight C—Performance Redefined
See Fast. Aim True. Replace Easy.
Precision Targeting with a Broader View.

● Large Field of View with Multi-Coated Lens
Engineered with advanced anti-reflective lens coatings, this sight maximizes light transmission for unmatched clarity, allowing you to lock onto targets with pinpoint precision quickly. The 0.95'' × 0.75'' window delivers a greater sight picture, ensuring faster target acquisition and quicker follow-up shots. It’s ideal for duty-sized pistols and popular compact models used in everything from competitive shooting to home defense.

● 3 MOA Dot & 32 MOA Circle
Seeking precision and versatility? With the Osight C, you can easily switch between dot-and-circle, dot-only, or circle-only reticles, and tailor your aiming solution to any shooting scenario. The sharp and bright dot-and-circle reticle provides a cutting-edge aiming experience.

● Side-Loading Battery
For too long, changing a battery on a pistol-mounted optic meant removing the entire sight, which often required re-zeroing your pistol—a time-consuming and frustrating process. With Osight C, you can effortlessly replace batteries without removing the optic, ensuring hassle-free re-zeroing. A high-end CR1632 battery offers easy accessibility while maintaining steady performance.

● Most Common Footprint
It is designed with versatility in mind, adopting the widely accepted industry standard footprint (Ruggedized Miniature Reflex, or 407c/507c), making it compatible with a broad range of pistols—from full-size to compact models. This means you can easily upgrade your existing firearm without worrying about fitment issues. Additionally, Osight’s Picatinny mounts expand your options even further, offering both high and low adapters to seamlessly fit nearly any long rifle. Whether enhancing your pistol or equipping a tactical rifle, the Osight C delivers dependable performance and adaptable functionality to suit your requirements.

Osight K—Redefine Precision. Demand Performance.
Fast Targeting. Bigger Dot. Reliable Power.
See More. Move Faster. Stay Ready.

● 6 MOA Dot
The 6-MOA dot offers a clear and easily visible aiming point that enables faster target acquisition, especially in high-pressure situations such as self-defense or law enforcement operations. Its larger size ensures consistent sight alignment and presentation, reducing the time needed to get on target. This makes it an excellent choice for quick, accurate shots from the holster, providing confidence and reliability when every second counts. Whether you're in a tense encounter or training for rapid engagements, the 6-MOA dot enhances your ability to react swiftly and hit your mark with precision.

● Side-Loading Battery
Like the Osight C, the Osight K is also equipped with a convenient side-loading battery. You can now swap out the CR1620 battery in seconds without ever detaching the optic from your pistol. This means your zero stays true, your sight is always ready, and your peace of mind is never compromised.

● RMSc Footprint
Fitting directly to your optics-ready slides, the compact optic delivers exceptional compatibility, ensuring seamless integration across a multitude of builds.

Shared Features of Osight C and Osight K
● Motion Sensor Function: Activates the optic at the slightest movement and powers down after 3 minutes of inactivity to conserve battery life.
● Low Power Indicator: Alerts users with a quick triple-flash when battery voltage is low, prompting timely replacement.
● 10 Brightness Settings: Offers 8 daylight and 2 night vision brightness levels to adapt to various lighting conditions.
Osight C vs. Osight X: Side by side
Before we dive deeper, let's see how the Osight C stacks up against its big brother, Osight X. The differences speak for themselves:

While Osight C reinvents the entry-level red dot with simplicity, confidence, and smart usability, its bigger brother Osight X is built for those chasing peak performance.
Osight C - Your first red dot, reinvented. Larger wide window, side-loading battery, and beginner-friendly reticles-all at an accessible price point.
Osight X - Engineered for advanced shooters who demand maximum ruggedness, enhanced clarity, and pro-tier adjustability.
If you're starting your red dot journey, Osight C is designed to make it effortless. lf you want to surpass your limit, then, Osight X is waiting for you.
Osight K vs. Osight SE vs. Osight S: Side by Side
Every shooter's needs are different. Here's how the three optics compare.

Osight K — Compact and carry-ready. A bold 6 MOA dot, motion activation, and side-loading battery make it the ideal EDC companion.
Osight SE — Versatility unlocked. Enclosed 2 MOA dot with 32 MOA circle offers multiple reticle choices for training and adaptability, plus longer runtime.
Osight S — Endurance and ruggedness. Enclosed red dot with a rechargeable Li-Polymer battery with Charging Cover, 87,600 hours of life, and IPX7 protection built for professionals.
Whether you want the simplest, fastest solution, more reticle versatility, or maximum battery endurance, the Osight family offers an optic built for your mission.
Conclusion: Are You Ready to Upgrade Your Aim?
The Osight C and Osight K are more than just products—they represent the perfect blend of precision and durability, ensuring every shot is on target and every moment is seized with confidence. Get hands-on with our latest gear and elevate your tactical performance.






