HOLOSUNHolosun Circle Dot Sight

Overview:This is a magnifier for use behind a red dot optic and I suspect a holographic type as well but I didn’t have one availableIntended usage and suitability to task:I wanted a magnifier for use behind a trijicon MRO optic. I find that target precision is difficult with my aging eyes beyond 100 yards. The magnifier had to be at least 3x , have a good mount included and be weatherproof. This was not to be in place all the time so a quick release mount would be preferable. Glass clarity was important as it was the main reason for getting one. Eye relief had to be around 3 inches for my setupFunction/appearance/ operation :The unit seems well made. It’s about average in weight compared to the others I had seen ( vortex, primary arms ) the mount was usable and flips to the right which I prefer. Several hard wiggles did not flip it which is nice as I don’t want it flopping around.The glass was clear and I did not notice any odd color casting. I was able to adjust the focus ring easily with glasses and with them off so the range of adjustment was good for my eyes.The magnifier set up well behind my red dot and I did not have to do any adjustments with the vertical or horizontal adjustment. The one drawback with it is when the red dot and magnifier are in place there is no room to mount it if you wish to keep all in the receiver and have a rear backup sight. It was not an issue in my case as I use offset back up sights so it was not an issue.Overall I believe the price was reasonable and it was well made and suitable for its intended usage and if your use / need is similar to mine I can recommend this unit.

The optic arrived in perfect condition. Installation on my EDC was a breeze. I have taken it to the range & given a proper zero. Adjustments were easy & clicks were audible. You could feel them as well.The glass may be an issue for some. Indoors it has a noticeable redish/purple tint. Outdoors it isn't noticeable. The front hood isn't as pronounced as I would prefer, but more than sufficient to protect the glass. Just know that you will leave hand/fingerprints (oil) on the front glass should you use the optic to press or rack.The dot, being green, is bright & extremely easy to pickup in all light conditions. Even the bright outdoors couldn't hide the dot. Some people may not be able to see a crisp dot. I am one of those people. It's astigmatism NOT an issue with the optic itself.The battery is in a side tray. Another big plus. Means changing the battery doesn't require removing the sight from the slide.Fit & finish were great. Finish has held up with no issue so far on my EDC. It has endured rain, dust, dirt.I would recommend this optic to anyone looking for a reliable & cost effective solution to meet their EDC needs.

So I have this mounted behind a Holosun green dot and it functions very well. I like that you can flip it easily when you want, and the mount is reversible so you can flip it either way. Glass is quality and the image is clear.However, I find it very unfortunate that this is made in China. Had I know, I would have avoided Holosun entirely. It appears that most, if not all, of their products are made in China and I will not purchase from them again.

Used with Primary Arms Red Dot. Little bit pricey but worths every single penny. Highly recommend the product!

it looks clearer that the picture. it has a good eye relief ( about 2 inches) its lighter and clearer(for my eyes) and cheaper than the PA 3x micro magnifier it replaced, with better eye relief and eye box. I was able to easily remove the screws on the mount ( must be newer upgraded batch) very easily with the included tool. lined it up with the included riser to match the Primary Arms 1x Microprism and i was able to easily focus the prism with the magnifier as well.. Reticle being focused with the magnifier on or off by adjusting the Diopters ( started with the Microprism first and then adjusted the holosun) The screws do have red loc-tite. includes a small riser and extra longer screws for it. i was surprised at the clarity of this magnifier. nice surprise !! keeping it! it works with microprism as i cannot do red dots as they starburst in my eyes.

I can’t say much because I haven’t had it long. Quality is good, installation was easy. Dot is perfect. So far so good.

I was hesitant in purchasing any magnification for the Romeo MSR Gen 2 but now happy I did. Makes a huge difference and this model works great! Nice clear clean picture! Did a lot of research on them which brought me to the model after reading hundreds of reviews on several model's people liked this one and now, I know why!

Super clear glass and well built

Devant un Holosun hs521c c’est juste parfait.