The HS507K X2 is an open reflex optical sight designed for concealed carry pistol applications. The X2 Series pistol optics feature two improvements. First is the addition of Lock Mode from their 2018-2019 LE pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Second, the buttons have been redesigned to compliment the Lock Mode by placing them lower and out of the way. Additional features include Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, and Shake Awake.
This optic is designed for smaller pistol models like the G43 or P365. For mounting on N17, N19, N22, N23, N26, and N27 slides (or P320 slides), you will need to shorten the screw that Holosun provides to avoid interfering with the extractor depression rod hole. Shortening the screw from 12mm to 10mm overall length is sufficient to clear the hole. They use a proprietary screw type and we cannot find an off-the-shelf screw to match. Please seek support from Holosun on obtaining the correct length screw.
- Installation Note:
- Optics will ship uninstalled in the original packaging to protect them during shipping.
2 Reviews
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Holosun 507k great sights!
The sight works great, can change between 3 different red dots, cross hairs, crosshairs with dot, and dot. Increase and decrease brightness, atutomatic shut off when put down and turn on when picked up. You can also change the time for that. Also lock for red dot so when in action you don’t accidentallY trigger a change. The dot itself is great, the only complaint or problem in encounter which is partially my fault. But it didn’t work with my Norsso Reptile Tp slide. But with a quick adapter purchase online the sight works like a dream. It also raise just a bit to match with my heightened night tac iron sights: it all lines up perfect. Also when my dots on, the round is going exactly there. Impressive highly recommend
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Red dot
This is a great red dot. I originally purchase the green version but turns out I can’t see the green dot very well. Maybe due to an astigmatism. So NORSSO graciously allowed me to exchange the green dot for the red dot and the red one is way better for my eyes. Great products and great service.
