Holosun HE507K-GR X2 Reflex Sight Green 2-MOA Dot/32-MOA Circle

Description

This ultra-compact green dot reflex sight delivers rapid target acquisition and exceptional battery life in a subcompact footprint designed specifically for concealed carry pistols.

Whether you’re running drills at the range or carrying daily, the Holosun HE507K-GR X2 provides the visibility advantage of a green reticle system that many shooters find easier to see in varied lighting conditions. The green Super LED wavelength matches what the human eye responds to most naturally, offering crisp dot definition that remains visible from full sunlight to low-light environments. With its Multi-Reticle System offering three distinct aiming options and up to 50,000 hours of battery life, this optic eliminates the common frustrations of frequent battery changes while giving you the flexibility to adapt your reticle to any shooting scenario.

Key Features

• Multi Reticle System: Toggle between a 2 MOA dot, 32 MOA circle, or combined circle-dot configuration to match your shooting distance and style—the large circle accelerates target acquisition during draws while the precision dot enables accurate shot placement
• Extended 50,000-Hour Battery Life: The CR1632 battery delivers up to 5 years of continuous operation on setting 6, and the side-mounted battery tray allows replacement without removing the optic or losing your zero
• Lock Mode Protection: Prevents accidental button presses and setting changes during carry or holstering, ensuring your brightness and reticle settings stay exactly where you configured them
• Shake Awake Technology: Motion sensor instantly activates the LED from sleep mode within fractions of a second when you pick up or draw your pistol, extending battery life while maintaining instant readiness

Important Compatibility Notes

Direct Mount (No Adapter Needed):

• Sig Sauer P365X, P365XL, P322
• Canik Mete MC9
• PSA Dagger Micro
• IWI Masada Slim
• FN Reflex MRD
• Ruger Max 9
• Taurus GX4
• Bul Armory SAS II UL

Requires Adapter Plate:

• Slides with four-boss interface (standard RMR pattern)
• Glock 43X/48 MOS (requires K-footprint adapter)
• Smith & Wesson M&P Shield Plus OR
• Springfield Hellcat OSP
• Other pistols with RMSc cuts may require adapters

The HE507K-GR X2 uses Holosun’s K footprint, which is a modified RMSc pattern with improved waterproofing but without the rear recoil lugs found on standard RMSc optics.

Why We Carry It

The human eye is approximately twice as reactive to green light wavelengths (540nm) compared to red, which is why Holosun engineered their Super Green LED technology to match this optimal wavelength. This scientific approach means the green reticle often appears brighter and sharper to shooters, particularly those with mild astigmatism who report the green dot shows less starburst effect than red alternatives. The 507K series has earned recognition from the NRA and maintains consistently positive reviews across the shooting community, making it one of the most trusted micro optics for concealed carry applications. We stock this sight because it solves real problems—rapid sight picture acquisition, all-day battery reliability, and a mounting system that works across the most popular subcompact pistols on the market.

Frequently Asked Questions

Will the green dot help with my astigmatism?

Many shooters with astigmatism report that green dots appear crisper with less starburst effect compared to red dots, though results vary by individual. The 2 MOA dot size also helps minimize bloom. Setting brightness to the lowest usable level further reduces any distortion. The 32 MOA circle option provides an alternative aiming reference that some shooters with astigmatism find easier to use than the dot alone.

How do I change between the different reticle options?

Hold the minus (-) button for three seconds to cycle through the three reticle modes: circle-dot combined, dot only, or circle only. Your selection is saved automatically. Battery life varies by reticle—using only the 2 MOA dot provides the full 50,000 hours, while the combined circle-dot reticle reduces battery life to approximately 20,000 hours on setting 6.

Can I co-witness this optic with my factory iron sights?

Yes, the HE507K-GR X2 sits low enough on compatible slides to allow lower 1/3 co-witness with most factory iron sights. On direct-mount pistols like the Sig P365XL, you can typically see your front sight through the optic window. The sight is also compatible with most factory backup iron sights when properly installed.

Spec Sheet

Optical Data

• Reticle: 2 MOA Dot & 32 MOA Circle
• Light Wavelength: 540nm
• Reticle Color: Green
• Parallax Free: Yes
• Unlimited Eye Relief: Yes
• Magnification: 1x
• Multi-Coatings: Yes

Electronic Data

• Power Source: Battery
• Battery Type: CR1632
• Battery Life (Hours): 50,000
• Brightness Setting: 10 DL & 2 NV

Mechanical Data

• Housing Material: 7075 T6 Aluminum
• Surface Finish: Anodize
• Adjustment per Click: 1 MOA
• W&E Travel Range: ±30 MOA
• Window Size: 0.58″ × 0.77″
• Dimension (in): 1.6″ × 0.98″ × 0.95″
• Weight (oz): 1

Environment Data

• Storage Temperature: -20°C ~ 65°C
• Working Temperature: -20°C ~ 51°C
• Submersion: IP67
• Vibration: 5000G

Included in Box

• Multi Tool
• User Manual
• Lens Cloth