Holosun 507K X2 Review/Product Info:

Holosun’s HE507K-X2 has become one of the most popular micro red dots for concealed carry pistols, praised for its durability, crisp reticle, and long battery life. In this review, we’ll cover everything from mounting to performance so you can decide if it fits your EDC setup.

 Holosun HE507K-GR X2 green dot builds on the original Holosun HS507K red dot model with enhanced button access, lockout mode, and upgraded electronics. It retains all the benefits of Holosun HS507k, with better durability and control.

The HE507K-GR X2 Green Dot version also offers increased contrast and visibility in bright daylight, with the same footprint and battery life as the red version. It is 2 is equipped with Lock Mode, which prevents accidental button presses and setting changes when activate.

Multilayer Reflective Coatings ensure maximum light transmission and glare-free views in all environments. 

A Holosun 507K X2 Manual: What You Need to Know

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If you’re setting up the optic for the first time, the manual provides detailed instructions on installation, battery replacement, and zeroing. Whether you’re a first-time user or experienced shooter, understanding the manual helps avoid mounting or sighting issues.

 How to Turn On Holosun 507K 

• Turn ON: Press either the “+” or “−” button once. The reticle will immediately illuminate.

• Turn OFF: Press and hold the “−” button for 3 seconds.

How to Turn On Shake Awake on Holosun 507K

Shake Awake is pre-enabled by default. To re-enable it after disabling, hold the “+” button for 10 seconds, wait for the LED flash, and then release. This reactivates the motion detection feature.

– You can adjust the sleep timer on the HE507K-GR via programming mode.

 Holosun 507k X2 Reticle Settings & Adjustments

• Reticle Options:

  • 2 MOA Dot

  • 32 MOA Circle

  • Circle + Dot Combo (Multi-Reticle System)

• Brightness Adjustment:

  • Press “+” or “−” to cycle through 12-level brightness settings, including 2 night vision-compatible levels.

• How to adjust HE507K-GR for Windage & Elevation:

  • Use a T10 Torx driver

  • Each click = 1 MOA

  • Elevation turret is on top, windage on the right side.

 

Holosun 507K X2 Reset Instructions

 To reset to factory settings:

1. Turn off the optic.

2. Hold both “+” and “−” buttons for 5 seconds.

3. The LED will blink—settings are reset.

What Footprint is the Holosun 507K?

• Footprint Type: Modified Shield RMSc

• Compatibility: Glock 43X/48 MOS (with correct plate), Sig P365X/XL, Springfield Hellcat OSP, etc.

⚠️ Some slides require a 507K-to-RMSc adapter plate. Always confirm optic cut depth.

Already know it fits your slide? Order the 507K here

Holosun 507K Price: What Should You Expect?

The HE507K-GR-X2 price depends on the color and dot color (red or green). Typically, expect to pay:

• HS507K X2 Red Dot: $289–$309

• 507K X2 Green Dot: $309–$339

  Where to Buy

  Looking for the Holosun 507K for sale at the best price? Many authorized dealers list this optic between $280–$310, depending on variant and color. It’s available in both red dot and green dot (X2) versions.

  You can get one right here at an affordable price!!

Features of HE507K-GR X2 Green Dot Reflex Sight:

• MRS: Circle Dot; 2 MOA Dot; 32 MOA Circle

• Up to 50,000 Hours Battery Life (Setting 6)

• 12 Brightness Setting: 10 DL & 2 NV Compatible

• Convenient Tray Battery Compartment

• Parallax-free & Unlimited Eye Relief

• Designed for CCW

• IP67 Waterproof

Package Contains:

• HE507k-GR X2 Green Dot Reflex Sight/ HS507K Red Dot

• T10 Torx driver

• Multi-Tool

• Lens Cloth

• User Manual

FAQ

 – Which Glock MOS Plate for Holosun 507K?

For Glock 43X/48 MOS, use the CHPWS 507K adapter plate or Glock Store RMSc-to-507K conversion plate. OEM Glock MOS plates are not compatible without modification.

 -What’s the Difference Between Holosun 407K and 507K?

The 407K offers a single 6 MOA dot, while the 507K includes the multi-reticle system (2 MOA dot + 32 MOA circle). Choose the 407K for simplicity or the 507K for flexibility

– HOLOSUN 507K X2 Best Prices

• HS507K X2 Red Dot: $289–$309

• 507K X2 Green Dot: $309–$339

• 407k Red Dot: $215
• 507C X2 : $298.9