Holosun 407K X2 Red Dot Sight (HS407K X2)
Quick Check: Compact Carry Optic with Holosun K Footprint.
Reticle: 6 MOA Dot.
Footprint: Holosun K Series / Modified RMSc.
Battery: Side-loading CR1632.
Best Use: Concealed carry, defensive pistols, and micro-compact optics-ready handguns.
The Holosun 407K X2 Red Dot Sight is a compact pistol optic built specifically for modern concealed carry and defensive handguns. Designed around slim and micro-compact pistols, the Holosun 407K delivers fast target acquisition, dependable battery life, and a durable aluminum housing in a lightweight package that is ideal for everyday carry.
The HS407K X2 features a crisp 6 MOA red dot that is easy to track during rapid shooting and close-range engagements. Combined with Holosun’s Shake Awake technology and side-loading battery tray, the 407K X2 offers the features shooters actually want in a carry optic without unnecessary complexity.
Technical Specifications
- Model: Holosun HS407K X2
- Reticle: 6 MOA Dot
- Magnification: 1x
- Battery Type: CR1632
- Battery Life: Up to 50,000 Hours
- Footprint: Holosun K Series / Modified RMSc
- Housing Material: Aluminum
- Battery Access: Side-loading Tray
- Features: Shake Awake and Lock Mode
Why Choose the Holosun 407K X2?
The Holosun 407K X2 was designed to give concealed carriers and defensive shooters a clean, straightforward aiming solution. The larger 6 MOA dot is extremely quick to pick up during rapid presentations and defensive shooting situations, especially at common handgun engagement distances.
- ✔ Large 6 MOA dot for fast target acquisition
- ✔ Compact housing ideal for concealed carry pistols
- ✔ Shake Awake technology helps preserve battery life
- ✔ Side-loading battery tray allows battery changes without removing the optic
- ✔ Lock Mode helps prevent accidental setting changes
- ✔ Durable aluminum construction for everyday carry use
Holosun 407K Footprint and Mounting Compatibility
The Holosun 407K X2 uses the Holosun K Series footprint, which is closely related to the modified RMSc footprint pattern. This footprint has become extremely popular on modern optics-ready concealed carry pistols and micro-compact handguns.
Depending on your firearm, the HS407K X2 may mount directly to the slide or may require an adapter plate. Always verify your optic cut and screw compatibility before installation.
If you need a compatible mounting solution, browse our Holosun K Series mounting plates here.
Need help understanding optic footprints and compatibility? Check out our Red Dot Footprint Guide.
Built for Everyday Carry Pistols
The Holosun 407K X2 was built around the demands of everyday carry use. Its compact size helps minimize printing on smaller handguns while still providing a large, easy-to-track aiming point. The durable aluminum body is designed to withstand repeated holstering, daily carry wear, and regular range use.
For shooters who prefer a simple and dependable carry optic, the HS407K X2 delivers excellent performance without unnecessary distractions or overcomplicated reticle systems.
Installation Notes
Before installation, ensure the slide cut or adapter plate is clean and free from oil or debris. Use the correct screws supplied with the optic or mounting plate, apply thread locker if recommended by the manufacturer, and torque screws to the proper specification.
Holosun typically includes mounting screws with the optic. Screw fitment may vary depending on the firearm and mounting plate combination being used.
Frequently Asked Questions
What is the difference between the Holosun 407K and 507K?
The primary difference is the reticle system. The Holosun 407K X2 uses a single 6 MOA dot, while the 507K includes multiple reticle options.
Will the Holosun 407K fit my pistol?
If your pistol is cut for the Holosun K Series or modified RMSc footprint, it may fit directly. Otherwise, you may need a compatible adapter plate.
Is the HS407K X2 good for concealed carry?
Yes. The compact housing, large 6 MOA dot, long battery life, and durable construction make the Holosun 407K X2 an excellent option for concealed carry and defensive handgun use.
Can the battery be replaced without removing the optic?
Yes. The HS407K X2 uses a side-loading battery tray, allowing battery changes without removing the optic from the firearm.
