Holosun HS407K X2 6 MOA Red-Dot Open Reflex Sight – Compact, Rugged, Feature-Rich
The HS407K X2 brings Holosun’s proven K-Series performance to sub-compact pistols in a lightweight, duty-ready package. A 7075-T6 aluminum housing, IP67 waterproof rating, and 5,000 G shock rating deliver real-world durability, while the updated Lock Mode prevents accidental adjustments once your settings are dialed in. With a generous 50,000-hour battery life and a crisp 6 MOA red dot, this sight offers dependable aiming without adding bulk.
Condition
Overall Condition: Excellent
Specific Condition Notes: Very little sign of previous use. Glass is clear and free of scratches.
What’s Included
- Holosun HS407K X2 6 MOA red-dot open reflex sight
- DPP Titanium GL-H07KA adapter plate for Glock 43X / Springfield Hellcat
- Holosun factory cardboard box
- Holosun HS407K X2 user manual
This HS407K X2 is tailored for today’s slim 9 mm pistols, using the Holosun K footprint to sit low on slides cut for micro optics. At just 1 oz, it keeps carry weight in check without sacrificing strength thanks to its 7075-T6 aluminum body.
The 6 MOA red dot offers fast sight acquisition at defensive distances, and each click of adjustment moves the point of impact precisely 1 MOA. A side-mounted CR1632 battery tray lets you swap power cells without removing the optic or re-zeroing.
Holosun’s upgraded X2 electronics add Lock Mode, inherited from the brand’s law-enforcement models. Once activated, the control buttons are locked to prevent unintentional brightness or power changes during concealment or recoil.
The optic’s open-reflex design delivers a clear 0.58 × 0.77 in window, while an IP67 seal guards against water and dust. Tested to 5,000 G and compliant with CE standards, the HS407K X2 is engineered for everyday duty and concealed-carry roles.
Please note: mounting screws are not included.




