OSIGHT C Micro Red/Green Dot Open Reflex Sight, 3 & 32 MOA Multi-Reticle | Large Field of View, Side-Load Battery, Aspherical Lens, Durable Design for Full-Size Setups
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Availability:
15 left in stock
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within 30 days
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Color: Red Dot
Features
- Most Common Footprint: Designed for slides cut for the Ruggedized Miniature Reflex (407c/507c) footprint. Other slides require an adapter plate (not included). Please verify compatibility before purchase.
- Side-Loading Battery: Effortless battery replacement without removing the optic ensures hassle-free re-zeroing. A high-end battery offers easy accessibility while maintaining steady performance.
- 3 MOA Dot + 32 MOA Circle: Switching between dot-and-circle, dot-only, or circle-only reticles, you can tailor your aiming solution to any shooting scenario. Sharp and bright dot-and-circle reticle provides a cutting-edge aiming experience.
- Large Field of View with Multi-Coated Lens: With advanced anti-reflective lens coatings, the sight enhances light transmission for clarity and precise targeting, big window offers a larger sight picture for quicker acquisition and follow-ups.
- Motion Sensor Function: Motion sensor activates the optic at the slightest movement, and powers down after 3 minutes of inactivity to conserve battery.
Description
Osight C is a high-value open reflex sight designed to deliver exceptional performance across a variety of shooting disciplines. Engineered with advanced anti-reflective lens coatings, this sight maximizes light transmission for unmatched clarity in both bright and low-light conditions to let you quickly lock onto targets with pinpoint precision.
Brand: Osight
Color: Red Dot
Style: Red 3 MOA Dot & 32 MOA Circle
Product Dimensions: 1.18"L x 1.18"W x 1.77"H
Sport: Hunting
Item Weight: 1.48 ounces
Material: Aluminum
Compatible Devices: Firearm
Mounting Type: Integral Mount
Field Of View: 24 millimeters
Compatible Devices: Firearm
Mounting Type: Integral Mount
Field Of View: 24 millimeters
Thread Type: 407c/507c
Reticle Type: Dot & Circle
Item Dimensions L x W x H: 1.18"L x 1.18"W x 1.77"H
Item Weight: 1.48 ounces
Color: Red Dot
Product Style: Red 3 MOA Dot & 32 MOA Circle
Lens Color: Red
Material Type: Aluminum
Brand Name: Osight
Sport Type: Hunting
Model Name: US-OSIGHTC-RD-300115
Manufacturer: Osight
Unit Count: 1 Count
Included Components: Adjustment Tool × 1;, Battery Compartment Screw x 2, Osight C × 1, Pouch × 1; Cleaning Cloth × 1; Osight Sticker x1, User Manual × 1; Safety Warnings × 1; READ ME Card × 1
Model Number: Osight C
Warranty Description: Lifetime Warranty
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
within 30 days
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Green Dot
Great Mini Red(Geen]Dot. If you like Holosun products like the 507 thrn you will like this as much and probably better since it is considerably less expensive. Most complete set of accessories ive gotten with a sight. Everything you need plus. Its extremely well build and tuff as heck. Battery life exceeds almost every other sight out there with a quick auto off of 3min if its totally motionless and back on before you can get the pistol up in view. I have 6 Holosuns of diff models, a few Vortex, Primary Arms and a Trijicon. Olight will be my go to from now on....unless I need something super specific they don't offer. I will also add the reticle is better than most if you have an astigmatism and wear glasses, round and not comma shaped like alot others. Glass is clear and distorsion is minimal, if you can even see any at all. Additionally they make top quality, bright flashlights. Owned many for years and they are bullet proof. Hope this review relieves some anxiety about trying a new manufacturer You can't go wrong, just buy one and see.
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Reviewed in the United States on July 23, 2026 by Mike T
Color: Red Dot
I really like this sight! I got my first carry gun and just need a little bit of budget friendly option when it came to sights as there was nothing on sale when I was looking. I looked at the reviews and did some research and found myself looking at the Olight line of sights. Ultimately went with this one based on reviews and price tag and let me tell ya it wasn’t a mistake. The sight is nice and seems very durable. It’s easy to sight in and has nice adjustability when it comes to brightness. Love the 3 sight options too! Shake awake is a must on my carry gun. So far it holds zero pretty darn well. Unsure of its battery life as I’ve really only had it a short time but I’m sure it’s a couple years with normal use. When installing I recommend that you pay attention to the proper screws for your firearm and torque it down to the proper torque or it’ll come loose. Overall highly recommend it! Great sight for the price and you won’t regret the purchase.
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Reviewed in the United States on May 23, 2026 by jane childers
Color: Green Dot
⭐⭐⭐⭐⭐ Excellent optic with a crisp reticle and outstanding value! I have been extremely impressed with the Osight C Micro Dot Sight. The build quality feels solid and well-made right out of the box, and it has performed flawlessly since I started using it. The reticle is bright, crisp, and easy to acquire, making it quick and intuitive to get on target in a variety of lighting conditions. The glass is clear with minimal distortion, and I appreciate how sharp the dot and circle reticle appear. The controls are straightforward, and adjusting the brightness is simple. Once zeroed, it has held its settings consistently, giving me confidence every time I use it. Another thing that stands out is how compact and lightweight it is. It doesn’t add unnecessary bulk, yet it still feels durable and built to last. The battery life has also been excellent, and the overall design gives it a premium look and feel. Considering the quality, performance, and features, this optic offers exceptional value for the price. Whether you’re upgrading from a basic red dot or looking for a dependable micro optic, this is a fantastic option. I would absolutely purchase it again and highly recommend it to anyone looking for a reliable, high-quality optic without spending a fortune.
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Reviewed in the United States on July 11, 2026 by Angelique Torres
Color: Green Dot
Review of the Osight C, in my case the green dot version. So the first impression of the optic is that it appears really well built. I tried to capture some good quality pictures. The packaging is almost "Apple iPhone" feeling. You can tell the company truly put their time and energy to build and release a good quality product down to how they package it. I purchased this particular optic for my custom optic cut slide for my Glock (shout out to GlockStore). With the RMR foot print and the price point I was excited but skeptical. I've had this sitting in my Amazon cart for weeks, watching videos of teardown/durability test. After finally making up my mind I choose the Osight C Green Dot. Now, as of me writing this review, I haven't got my slide back to actually mount the optic but these are initial thoughts. The quality of the green dot (which the pictures don't do it justice) is really great. The glass is very clear and looks incredibly well made. The radicle is crisp and clear. I enjoy the option to choose between just the dot and the circle dot. Green really helps me as my Vortex Defender CCW (red dot) sometimes looks blown out. The optic comes with a soft TPU feeling cover to protect it, good especially for storing or range trips. In the packaging comes an assortment of mounting screws for various slide cuts, operation manual, a branded cleaning cloth, extra screws for the battery tray and a convenient bit driver for installing/maintaining the optic. The optic came with a 3 volt, CR1632 button cell. These batteries are pretty standard and last a while, just change it on your birthday every year and it should be good for another year. If it dies you can easily get one from just about any store for cheap. I should also mention that there is a yellow card included that shows the installation process and torque specs for the various mounting screws. Overall, off of first impressions, I love it. I think it's going to be a great addition to my collection and I'll enjoy it on my newly cut Glock. I'll update this review after I go to the range and sight/test it further.
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Reviewed in the United States on April 4, 2026 by LandyTheReviewGuy
Color: Red Dot
I took a chance on this because of the good reviews and the price being more affordable compared to other options. I honestly don't really see how any other brand could be better. This thing is incredible. It has stayed spot on and zeroed in since I set it and have had multiple range trips with it. I have yet to need to replace the battery, and the red dot itself is super crisp and clear. It can get very bright, but it works best at a lower setting as the brightest it gets is VERY bright. The construction feels fantastic as well. Highly recommend. You won't be dissapointed.
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Reviewed in the United States on June 13, 2026 by Justin W Bowling
Color: Red Dot
Mounted on my Rival and I love it! Reticle actually looks clearer than Holosun and Vortex dots, nice sight picture for the size, and changing reticle size and brightness is easy- great functionality. Ialso like the optic is "blacked out". The packaging and accessories they include is fantastic- all the screws they add (packed in their own container and labeled) made it very easy to install. Seems well built and durable (you can also look at torture tests videos) and seems accurate so far with no loss of zero thanks to the Loctite they put on the screws. I would recommend buying a decent bore sight laser to do a basic zero at home before going to the range to fine tune if needed. The only reason I take a star off is because the instructions were either a little confusing for windage or written backwards- before I had the laser I was turning the screw opposite (at the range before getting a laser) of where it needed to go, so I was getting more off target and wasn't sure if it was shooting error. It was frustrating because I'm no "hicock45" but a decent shot- this is why I recommend getting a bore laser so you know the sight is accurate.
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Reviewed in the United States on February 1, 2026 by Dean Larson
Color: Green Dot
I’ve been running the Osight C micro red dot on a pistol with an RMR-pattern slide, and so far it has been a solid optic for both range use and training. The 3 MOA dot combined with the 32 MOA circle reticle is one of the main reasons I picked this sight. You can run the dot only, circle only, or both together, which makes target acquisition very fast while still giving a precise aiming point.  The glass clarity and window size are better than I expected for the price, and the larger viewing window makes it easy to pick up the reticle during quick draws or transitions. Brightness adjustments are simple, and the dot remains crisp even at higher settings. Another feature I really like is the side-loading CR1632 battery. You can swap the battery without removing the optic or losing zero, which is a huge convenience compared to bottom-battery designs.  Things I like most: • Multi-reticle system (3 MOA dot, 32 MOA circle, or both) • Clear glass with a large viewing window • Side-loading battery so you don’t have to remove the optic • Motion sensor wake-up feature to save battery life • Standard RMR footprint fits many optics-ready pistols  One small note: it’s not as ultra-compact as some micro optics, but the larger window actually makes it easier to track the dot during rapid shooting. Overall, this feels like a great value red dot with features normally found on more expensive optics. If you’re looking for a versatile pistol optic with a fast-acquisition reticle and easy maintenance, the Osight C is definitely worth considering.
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Reviewed in the United States on March 8, 2026 by Doc Niemo
Color: Red Dot
I was blown away with this one! First off, I’ve only run Holosun optics on my pistols. I’m a firm believer in consistency and quality. This optic is just as good as the “other” ones I own. A multi reticle 2 MOA dot that holds its zero for under 200 bucks sounds too good to be true. However, I took the leap and am glad I did! First true run was at a USPSA competition and it worked great. Shot 90% of my shots in A groups and had zero issues. Love the optic and may buy another for my next G19. If you’re not a brand snob, try one out. I think they’re worth every penny.
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Reviewed in the United States on June 2, 2026 by Nathan