The Holosun 407K X2 6 MOA Red Dot sight brings proven micro-optic performance and rapid target acquisition to subcompact concealed carry handguns. Tailored specifically for slimline slides, the 407K X2 features a dedicated 6 MOA red dot—the optimal reticle size for defensive handguns, allowing shooters to acquire their sight picture faster at close-to-medium ranges. (Note: Unlike the 507K series, the 407K X2 utilizes a single fixed 6 MOA dot rather than a Multi-Reticle System).
Crafted from CNC-machined 7075-T6 aluminum and weighing only 1.0 ounce, this lightweight optic stands up to heavy slide recoil without adding unnecessary bulk to your carry rig. The X2 series upgrade incorporates Holosun’s Lock Mode, which locks out the side adjustment buttons to prevent accidental brightness shifts while holstered. Powered by a side-loading CR1632 battery, you can swap power cells easily without unmounting the sight or losing your zero. Integrated Shake Awake™ technology automatically turns off the LED during inactivity and reactivates it upon movement, maximizing operational battery performance up to 50,000 hours.
Engineered around the Holosun 407K footprint optic standard (a modified Shield RMSc footprint), this unit sits low on optics-ready slimline slides to support intuitive co-witnessing with standard iron sights. Whether you are checking the Holosun 407K X2 price, searching for a Holosun 407K X2 for sale, or ready to complete your purchase of a Holosun 407K X2 buy online, this subcompact pistol red dot sight delivers duty-grade reliability and fast sight alignment for daily concealed carry.
Key Specifications & Features
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6 MOA Red Dot Reticle: Dedicated, large red dot allows rapid sight acquisition for close-range defensive shooting.
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Side-Loading Battery Tray: Easily swap out the CR1632 battery without removing the optic from your slide.
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Shake Awake™ & Lock Mode: Motion-sensing technology extends battery life up to 50,000 hours, while Lock Mode prevents unintended setting shifts during daily carry.
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Rugged 7075-T6 Aluminum Housing: Anodized aluminum build rated IP67 waterproof for severe weather resilience.
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Tactile Adjustment Controls: Features 12 brightness settings (10 daylight and 2 night-vision compatible modes) with responsive side buttons.
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Low-Profile Deck: Direct-mounts low on K-series slide cuts to facilitate clean co-witnessing.
Technical Specifications
| Specification | Technical Details |
| Model / MPN | HS407K-X2 |
| Reticle | 6 MOA Red Dot |
| Reticle Color / Light Source | Red (650nm LED) |
| Magnification & Optics | 1x Parallax-Free with Unlimited Eye Relief |
| Housing Material | CNC-Machined 7075-T6 Aluminum |
| Battery Type | CR1632 (Side-Loading Tray) |
| Battery Life | Up to 50,000 Hours (Setting 6) |
| Brightness Settings | 10 Daylight & 2 Night Vision Settings |
| Mounting Footprint | Holosun K-Series |
| Water Resistance | IP67 Waterproof |
| Weight | 1.0 oz (28.3 g) |





