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Window 22.5x16mm or 0.89"x0.63"
The CAT0 Red Dot Sight is ideal for self-defense. It’s compatible with pistols using the RMSc (407K/507K) footprint and features an impressive 50,000h battery life with a shake-awake (motion activation) function. Its sturdy aluminum housing and IPX7 waterproof seal ensure dependable performance.
*FOR Shield RMSc(407k/507k) footprints*
Larger Window with a Crisp Dot
The Cyelee CAT0 Red Dot Sight features a larger lens for an expanded field of view, providing a clearer sight picture. The bright, crisp 3MOA Red dot enhances target acquisition, allowing for faster and more accurate aiming in any lighting condition. Window 22.5x16mm or 0.89"x0.63"
CAT0 - For Everyday Carry With All the Features You Need
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Quick-Change Battery with Long Life
The CAT0 Red Dot Sight features a top-loading battery design for quick changes without removing the sight. It offers 50,000 hours of battery life on low brightness, ensuring uninterrupted performance.
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Compact for Daily Carry
The Cyelee CAT0 Red Dot Sight is compact and lightweight, perfect for daily carry. It offers rapid target acquisition and reliable performance without adding bulk, enhancing your shooting experience.
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Ruggedly Reliable
The buttons on the CAT0 are designed to be recessed, preventing accidental button presses when carrying concealed.
*FOR Shield RMSc(407k/507k) footprints*
Always Ready, Always On
MDS stands for Motion Deactivated Standby. Cyelee Optics products will NEVER have an automatic shut-off; they can only be turned off by holding the down/- button for 4 seconds. Once off, the optic can only be turned back on with manual button presses. While on, the optic constantly checks for movement. If it senses no motion for 5-7 minutes, it will enter MDS Mode. However, if it detects motion while in MDS Mode, it will display the red dot within a split second.
*FOR Shield RMSc(407k/507k) footprints*
More Details
- Daylight Bright and Crisp 3MOA Red Dot
- IPX7 Waterproof
- Low Tint Window
- Illumination Settings: 8 Daytime / 2 Nighttime
- Battery: 1 x CR1632 with up to 50,000 hours of battery life
Posada D
Reviewed in the United States on March 17, 2025
Works good and looks and feels sturdy and durable. Had them for 3 months and they work well and accurately!
Luke colbert
Reviewed in the United States on March 17, 2025
So far it's done everything it needs to without any hiccups mounted on full size 9mm, 1000+rounds.Easy to acquire dot, bright enough to use outdoors, and has held zero just fine. I do wish these came with a rubber cover.
Johnny Ozone
Reviewed in the United States on March 12, 2025
I like this red dot, but it doesn’t sit flush while on top my Glock 43X. It protrudes out on the sides and while I tried being okay with it, I ended up returning it.
WyomingTeacher
Reviewed in the United States on February 8, 2025
*I’ve only got 50 rounds of 9mm on this.This comes packaged tightly in a neat box like most Red Dots will. This model in particular comes with s ton of different screws to fit you slide cut. Im not sure why they are needed, but I was able to find a set that matched my GX4 perfectly. They are pre-loaded with blue loctite as well. It fit the rmsc cut perfectly and looks great.It took me a few rounds to get the elevation dialed in. That is on my and my like of ability to not jerk the trigger. The windage was super easy and had that on target in a breeze. Through the first 50 rounds it held 0.Someone said the brightness wasnt good in daylight, but I disagree. I have two vortex red dots, and this model was just as bright as the others. I prefer a 3 moa reticle, but it is smaller. I used this outside on a full sun day after a light snow (1” of snow.). I could see it fine.Im going to use this more before determining if it is my new favorite model or not. But the quality and price seem great for what I am looking to do. I cant find any reason to grade it down at this point.**Edit** I have had a chance to check on the shake awake function. I let it rest on the dresser, I returned 30 minutes later and without picking it up looked down the lens, and it had turned off. I picked it up and held it, by time I was in the sight it was on and operational. The plus is shake awake works. Im guessing, but who knows- that wearing it in a belt holster and walking would be enough to turn it on? Im not sure and dont know how to test that.
Steven
Reviewed in the United States on January 16, 2025
This site is a really great value it has many features of much higher priced sites such as the shake awake and timing turn off. It solidly constructed but not too large and bulky to make it unreasonable on a carry gun
Gerardo Mendoza
Reviewed in the United States on December 6, 2024
Very nice size, this is my first RMSc footprint optic and I am amazed by the size compared to RMR. Window is still a very decent size and dot is crisp and easy to pick up. (Remember to practice your draw and be sure your aim meets your eye) Dot gets plenty bright and plenty dim so it will function in all lighting conditions, buttons are very tactile. I got my initial zero using a laser bore sight in my pistol and then made my adjustments firing 5 round groups on paper. Hits dead on and was very easy. Auto on and auto off works perfectly and is a staple feature in every red dot I own. This makes my now 6th or 7th Cyelee optic I own and I am amazed by the quality every time, especially for the money.I do wish the windage and elevation screws had a more tactile "click" to them but they do provide some feel to the adjustments. My personal note would be to swap the inlcuded button batteries for a Duracell or Energizer branded ones. As the ones they include don't have the longest life span. Still pretty awesome that they even include a battery, let alone two!!
RealWelder
Reviewed in the United States on November 9, 2024
I bought this to replace my 407k on my Hellcat. I like that I don't need an adapter plate and the dot is much smaller, which is better for me.I previously bought a wolf0 and put it on a range toy and have been so impressed by it that I decided to give the cat0 a chance. I will have to put it through the ringer to make sure I can trust my life to it, but the wolf0 has held up no issues, which gives me hope for the cat0.The box says it has a larger window than both the 407k and the wolf0, but the wolf0 window seems bigger when they're side by side. It is bigger than the 407k. The shake awake feature did work on mine. The box says 7-8 minutes, but when I tested it... it shut off around 5 minutes.Update: One thing I will say is that the Wolf0 (RMR) isn't as bright and it's hard to see outside in daylight, but this Cat0 (RMSc) gets much brighter and after 6 months and probably 600 rounds or so, it is EDC approved.
hogntme
Reviewed in the United States on November 28, 2024
First you need to know the correct foot print. Use a Quality hexT10 wench to install No, not the one it comes with. Turn it on before you touch any adjustments. Recommend bore site to help and its handy to check optic as needed. Good value but even better is the service. I received replys in a few hours not days. Wish it fit tighter to sides of my micro hellcat but hey its made to fit alot of different guns.
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