Holosun HS515CM - Red Dot Sight with 65 MOA Circle

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Ratings Snapshot

4.5

out of 5

5 (1)

4 (1)

3 (0)

2 (0)

1 (0)

Would recommend this product.

100%

SKU: 222-HOL-HS515CM
UPC: 605930624700
MFG#: HS515CM

I’ve had a few of the earlier non-military models of HoloSun optics, and they worked great, but these new military-grade ones are even better. These days, I’m just an enthusiast/hobbyist, but if I were heading into a fight, I’d definitely recommend having one of these. The solar panel is a fantastic feature—it automatically adjusts the reticle brightness to match your surroundings. The only issue I’ve encountered is that in really dark places, the reticle can be hard to see against a well-lit target. However, there’s a manual adjustment for brightness if you need it. Overall, it performs well in all lighting conditions. The new see-through lens caps mean you don’t have to flip them open to get on target, which can be crucial when every second counts. The quick detach mount has worked flawlessly for me—no issues with it coming loose, moving around, or losing zero. I’ve used it on various guns, including calibers from 308/7.62x51mm, 5.56, 7.62x39, 5.7x28mm, 45ACP, 9mm, and 12ga. On the 308, I’ve removed and reinstalled it several times without losing zero. I highly recommend HoloSun optics.

I don't have anything in its "class" to compare it to, but I looked at the Sig Romeo 4T and the Aimpoint T2. I chose this one mainly because of the cost. Since I'm not a contractor or using it daily for protecting others, spending $700+ on the Aimpoint didn't make sense for my needs. I shoot a lot, working from home with a range in my backyard. Between jobs and other activities, I shoot around 2,000-3,000 rounds a month and hand load my ammo. This optic seems well thought out and designed, with two reticle choices. One disappointment was that the auto-dimming feature doesn't work in single-dot mode, which was a feature I bought it for. However, the auto-off/on feature is great. Just thumping the firearm with your finger turns it back on instantly, so it will always be ready when you need it. I use this on a suppressed SIG Rattler and MP5 clone, also suppressed. The brightness settings hold up well even on the brightest days in North Carolina, and the adjustment buttons are solid and reliable. The buttons are on the right side, which I found odd, but it’s not a big issue. I prefer buttons over wheels for adjustments, as long as they are sturdy. With my glasses on, the dot is clear and crisp. Running reactive targets like a dueling tree or Texas star was easy. I do wish the manufacturers would make the "tube" slightly bigger, as it feels like looking through a tube with both eyes open. Ideally, the frame of the optic should disappear, but the sleek design helps, and after some use, it wasn’t an issue. I like RMR-style optics for their peripheral sight picture. The auto-dimming feature can wash out if you're in a dark area aiming into a bright area, but you can push the up button to increase the brightness by one setting, which is a nice feature not available in many others. Initially, I didn’t like the battery "tray," but I quickly saw its advantage in making the body of the optic disappear when targeting. However, an in-field battery swap is not feasible unless you carry the tiny screwdriver provided. The mount seems okay but could be more heavy-duty. The quick disconnect feature works well, holding zero every time I swap it between weapons. I haven’t had to adjust it since the initial setup. The Rattler goes with me on the road, often getting thrown in and out of my truck, and it holds up well. I can’t comment on the battery life yet, as I’ve only had it a few months, but I'll update if it’s less than expected with the solar panel. Overall, it looks, runs, and feels like it’s worth every cent.