Description
This compact red dot sight transforms your subcompact pistol into a rapid-acquisition platform without adding bulk or compromising concealability.
Keep your sights on target faster with this purpose-built micro reflex sight designed specifically for concealed carry pistols. The Holosun HS407K-X2 delivers a crisp 6 MOA red dot optimized for defensive shooting distances, housed in a featherweight 1-ounce aluminum body that won’t weigh down your carry gun. The side-access battery tray eliminates the need to dismount your optic for battery changes, while Lock Mode prevents inadvertent settings adjustments during holstering and daily carry.
Key Features
- Lock Mode Technology: User-activated button lock prevents accidental brightness changes during carry, holstering, and handling—a critical feature for defensive applications
- Side-Loading Battery Access: Replace the CR1632 battery without removing the optic from your slide, maintaining your zero and saving time at the range or in the field
- Shake Awake Motion Activation: Automatically powers down after 10 minutes of inactivity and instantly reactivates upon the slightest movement, extending battery life to 50,000 hours on setting 6
- Compact K-Footprint Design: Modified RMSc mounting pattern fits directly on Sig P365X/XL slides and mounts to other popular subcompacts with widely available adapter plates
Important Compatibility Notes
Direct Fit (No Adapter Required):
- Sig Sauer P365X, P365XL, and P322
- Springfield Hellcat Pro
- Smith & Wesson Shield Plus (with proper screws)
Requires Adapter Plate:
- All Glock MOS models
- Canik Mete MC9
- PSA Dagger Micro
- IWI Masada Slim
- FN Reflex MRD
- Ruger Max 9
- Taurus GX4
- CZ P-10 series
- Walther PPQ/Q4/Q5
- Other pistols with four-barrelled or different optics interfaces
Why We Carry It
Since 2013, Holosun has earned recognition for delivering innovative optics features at accessible price points, and the HS407K-X2 exemplifies this commitment. The K-series specifically addresses the unique challenges of micro-compact carry pistols, where every ounce matters and reliability cannot be compromised. We stock this optic because it solves real problems for concealed carriers: It adds minimal weight, provides fast target acquisition with the 6 MOA dot optimized for defensive distances, and eliminates the frustration of removing the sight just to change a battery. The open reflex design provides a wider field of view compared to enclosed emitter designs, and the multi-coated lens delivers clear sight pictures in varied lighting conditions. Professional instructors and everyday carriers consistently report that once properly zeroed, the HS407K-X2 maintains zero through thousands of rounds while surviving the demands of daily concealed carry.
You can read more about this product here: https://goldtrigger.com/holosun-407k-review-complete-2025-guide/
Frequently Asked Questions
Will this sight work on my pistol without an adapter plate?
The HS407K-X2 mounts directly to Sig P365X/XL, P322, Springfield Hellcat Pro, and Smith & Wesson Shield Plus slides without adapter plates. Most other subcompact pistols require an adapter plate—especially Glock MOS models, which need a K-footprint adapter despite having optics-ready slides. Check with adapter plate manufacturers to confirm compatibility with your specific pistol model.
How does the 6 MOA dot size compare to smaller dots for defensive shooting?
The 6 MOA dot provides faster target acquisition at typical defensive distances (0-25 yards) compared to smaller 2-3 MOA dots, making it particularly effective for concealed carry applications where speed matters most. While a 6 MOA dot covers approximately 6 inches at 100 yards, this size remains precise enough for the distances where defensive pistol encounters occur. Many shooters with aging eyes or astigmatism find the larger dot easier to see clearly and prefer it for rapid close-to-medium range shooting.
Does the Shake Awake feature drain the battery or cause reliability issues?
The Shake Awake feature extends battery life by shutting off the LED after 10 minutes of motionlessness, then instantly reactivating upon any movement or vibration. The feature can be disabled if you prefer constant-on operation. Most users report that Shake Awake activates reliably during draw strokes. The optic includes last-setting memory, so your brightness preference is retained when the unit powers back on. Battery life remains exceptional at 50,000 hours on medium settings, whether Shake Awake is enabled or disabled.
Spec Sheet
- Reticle: 6 MOA Dot
- Light Wavelength: 650nm (Red)
- Reticle Color: Red
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Magnification: 1x
- Multi-Coatings: Yes
- Power Source: CR1632 Battery
- Battery Life: 50,000 Hours (Setting 6)
- Brightness Settings: 12 Total (10 Daylight + 2 Night Vision Compatible)
- Window Size: 0.58″ × 0.77″
- Dimensions: 1.6″ × 0.98″ × 0.95″
- Weight: 1.0 oz
- Housing Material: 7075 T6 Aluminum
- Surface Finish: Black Anodized
- Adjustment per Click: 1 MOA
- Windage & Elevation Travel Range: ±30 MOA
- Storage Temperature: -40°C to 70°C (-40°F to 158°F)
- Working Temperature: -30°C to 60°C (-22°F to 140°F)
- Waterproof Rating: IP67 (Submersible)
- Vibration Resistance: 5000G
- Mounting Footprint: Holosun K (Modified RMSc)
- Included Accessories: Multi-tool, User Manual, Lens Cloth, Mounting Screws
Reviews
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