The Holosun HS507K X2 is a compact red dot built for concealed carry on slim and subcompact pistols. It uses the RMSc footprint, so it fits carry guns like the SIG P365, Glock 43X/48 MOS, Springfield Hellcat and S&W Shield Plus.
Holosun's Multi-Reticle System switches between a 2 MOA dot, a 32 MOA circle, or the circle-dot combined. Shake Awake keeps it ready for years, and X2 Lock Mode prevents accidental setting changes.
How It Compares
Prefer green? See the HE507K X2. It fits the slim RMSc footprint — confirm your slide cut in our RMR vs RMSc guide. Browse more Holosun pistol red dots and pistol dot sights. Setting up a carry gun? Read best optics for concealed carry.
Ideal For
- Concealed carry and subcompact pistols
- Everyday carry (EDC)
- Slim, single-stack handguns
Key Features
- Multi-Reticle System (2 MOA dot / 32 MOA circle / circle-dot)
- Red Super LED, up to 50,000 hours
- Shake Awake motion activation
- X2 Lock Mode
- Side-loading battery tray
- RMSc (Holosun K) footprint
Technical Specifications
| Reticle |
MRS — 2 MOA dot / 32 MOA circle (red) |
| Magnification |
1x (parallax-free) |
| Window Size |
0.58 × 0.77 in |
| Footprint |
RMSc (Holosun K) |
| Battery |
CR1632 — up to 50,000 hours |
| Brightness |
12 settings (10 day / 2 NV) |
| Click Value |
1 MOA |
| Housing |
Aluminium |
What's Included
- Holosun HS507K-X2 red dot sight
- Multi-tool, lens cloth, user manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
Which pistols does it fit?
Any RMSc-cut carry pistol — SIG P365, Glock 43X/48 MOS, Hellcat, Shield Plus and similar. Confirm your slide cut first.
Red or green?
This is the red version; the HE507K X2 offers a green reticle that's often easier to see in daylight.
What is Lock Mode?
It disables the buttons so settings can't change accidentally in the holster.
Does it have solar?
No — the K-series runs on the CR1632 with Shake Awake for long runtime.
