Description
The HE407K-GR-X2 is the green-reticle version of Holosun’s micro carry optic, identical to the red HS407K-X2 in size, footprint, and controls, with a Super Green LED in place of the red emitter. The human eye is most sensitive to green light, so at the same power draw a green dot reads brighter and picks up faster against a cluttered or sunlit background, and shooters who see a red dot as a smear because of astigmatism often see a cleaner green one. The dot is a bold 6 MOA, sized for defensive distances where finding the dot fast matters more than shaving a fraction of an inch off a group.
Everything around the emitter is built for carry. Lock Mode disables the buttons so a setting cannot get bumped in a holster, and the X2 revision moved those buttons lower and out of the way to go with it. Shake Awake sleeps the optic when the pistol sits still and wakes it the instant it moves. The CR1632 loads from a side tray, so the battery gets changed without pulling the optic off the slide and without re-zeroing, and the 7075-T6 aluminum housing is hard anodized, sealed to IP67, and rated to 5000G of vibration. It mounts directly to Holosun K and compatible RMSc-pattern slide cuts, with no plate or mount included or needed.
Key Features
- Optic Type: Open reflex
- Magnification: 1x
- Window Size: 0.58″ x 0.77″
- Mounting Footprint: Holosun K (modified RMSc pattern)
- Reticle: 6 MOA green dot
- Illumination: Super Green LED, 540nm; 12 settings (10 daylight, 2 night vision)
- Adjustment Click Value: 1 MOA
- Total W/E Travel: 30 MOA
- Eye Relief: Unlimited
- Parallax: Free
- Weight: 1 oz
- Length: 1.6″
- Power: (1) CR1632, approx. 50,000 hr battery life at setting 6
- Weatherproofing: IP67, 5000G vibration rated
- Mounts Included: None; direct mount to slide
- Warranty: Limited lifetime on housing and optics; 10 years on the LED
- Country of Manufacture: Not published
Optical & Mechanical Specifications
- Lens Coatings: Multi-coated
- Housing Material & Finish: 7075-T6 aluminum, black hard anodized
- Dimensions: 1.6″ L x 0.98″ W x 0.95″ H
- Battery Tray: Side loading
Use Case
- Concealed carry
- Subcompact and micro-compact pistols
- Home defense
- Range and training use
Compatibility & Fitment
Slide Cut Required Holosun K footprint. This is a modified RMSc pattern: the rear posts are removed and the front posts are shorter, so the optic drops onto most RMSc and Shield RMSc slide cuts as well as Holosun K cuts. No plate, mount, or riser is included, and none is needed on a compatible cut.
Host Platform Fit Direct mount on the Sig Sauer P365X and P365XL and other P365-series optics-ready slides. Slides with a four-boss interface require an adapter plate, sold separately. Check the pistol against Holosun’s fit chart before ordering; optics-ready slide cuts vary between models from the same maker and between production years of the same model.
Iron Sight Co-Witness Not published for this optic. Whether the factory sights co-witness through the window depends on the depth of the slide cut and the height of the sights on that specific pistol; many carry pistols need suppressor-height sights to co-witness with a micro optic. Confirm on the platform before promising it.
Does Not Fit This is a pistol optic and does not mount to a rail. It does not fit Picatinny, Weaver, RMR, ACRO, or Docter footprints, and it will not mount to a full-size RMR-cut slide without an adapter plate.
Compliance & Legal Notes
- No FFL Required: Optics are not firearms; this item ships directly to the buyer with no FFL transfer.
- Export Restricted: Electro-optic sighting devices are subject to U.S. export control. Domestic shipping only; no international orders.
- California Prop 65: This product carries a California Proposition 65 warning (Zanders Prop 65 code A2).
- Buyer Responsibility: The buyer is responsible for confirming this optic is legal in their jurisdiction.
Box Contains
- HE407K-GR-X2 reflex sight





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