Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Questions & Answers
Does this come with screws to install on a p 365 XL?

I haven't bought the 507K yet, but I do have the 507C. It came with everything I needed to install and adjust, including the screws. I can't imagine the 507K wouldn't come with everything as well.

by Charles, Verified Owner, July 17, 2021
Is the Holosun name/logo, and model/serial number, painted on, or is it a decal? I've been waiting months for a HE508T-GR-X2, because it's all black. Expert Answer

Yes they are painted on there on the sides of the red dots.

by Ryan Tarczynski, Gear Expert, August 31, 2021
Customer Reviews
Helpful Positive Review
Highly recommended HE507K-GR-X2-ACSS by JLC, Verified Owner, January 22, 2026
I’ve been running the HE507K-GR-X2-ACSS for EDC and it’s easily one of the best micro pistol optics I’ve used. The ACSS Vulcan reticle is the real standout. On the draw, the outer reference ring immediately guides your eye to the center dot if your ...
Read More...
1/1 found this helpful
Helpful Positive Review
Great sight on Sig P365XL by Phil, Verified Owner, December 4, 2022
I love this thing. Bolted right onto my Sig P365XL everyday carry pistol (with its optics cut slide) in just a few minutes, needing a 5/64" hex wrench to remove the Sig rear sight. Small, fits very low, protrudes less than .80" above this slide. I pr...
Read More...
34/35 found this helpful
Helpful Positive Review
Wonderful green dot by Argos, Verified Owner, April 20, 2024
I have purchased cheaper dots for rifles, but I have never spent money for a higher end sight. I got this for my 10mm springfield, and I love it. In daylight, the objective is pretty crisp and clean. In low light it can get a small blur. This is defi...
Read More...
3/3 found this helpful
Helpful Positive Review
Holosun HE507-GR X2 sight by Patrick Dworak, Verified Owner, January 11, 2024
Purchased this sight to mount on a Springfield Hellcat OSP. Information for mounting a green dot on this handgun was lacking. I believed the sight needed to be RMSc format for mounting without the addition of a separate mounting plate. The informa...
Read More...
2/3 found this helpful
Helpful Positive Review
Works great, fits my sig p365 by Slugtrail, Verified Owner, February 2, 2025
Bought this reflex optic to replace a polymer one I had. Cant recommended polymer but this one is great, sits flat on the slide and holds zero. Very clear dot. Holosun optic is where its at.
1/1 found this helpful
Helpful Positive Review
Excellent red dot by A, Verified Owner, April 22, 2024
Great design works perfect with hellcat pro. Would buy again
3/3 found this helpful
Read All 245 Reviews
In Stock
2 Models Available
Reticle
All
Search

Product Info for Holosun HE507K-GR X2 1x Green Dot Reflex Sight

The Holosun HE507K-GR X2 1x Green Dot Reflex Sight is a powerful open reflex sight designed specifically for concealed carry handguns. These Red Dot Sights from the experts at Holosun feature a green reticle color with Super LED technology that improves target acquisition speeds in any lighting conditions. This HE507K-GR X2 1x Green Dot Reflex Sight is equipped with Lock Mode, which prevents accidental button presses and setting changes when activated. Multilayer Reflective Coatings ensure maximum light transmission and glare-free views in all environments.image

This sub-compact optic boasts tons of Holosun tech like Shake Awake Technology that powers the optic on when it senses motion and powers down when it does not, resulting in a much longer battery life. The Holosun HE507K-GR X2 1x Green Dot Reflex Sight also features the Multi-Reticle system that allows you to seamlessly switch between a circle dot reticle, 2 MOA dot only reticle, and a 32 MOA circle reticle only. With 12 brightness settings, including two that are compatible with night vision devices, you can customize your brightness level to best match your ambient lighting conditions. Pick up this HE507K-GR X2 1x Green Dot Reflex Sight today to improve your speed and precision with your CCW pistol.

WARNING: California`s Proposition 65

Specifications for Holosun HE507K-GR X2 1x Green Dot Reflex Sight:

Manufacturer: Holosun
Color: Black
Fabric/Material: 7075-T6 Aluminum
Magnification: 1 x
Objective Lens Diameter: 0.58 - 0.77 in
Illumination Type: LED
Illumination Color: Green
Brightness Settings: 12
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Open
Battery Quantity: 1
Water Resistance Level: IP67
Length: 1.6 in
Weight: 1 oz
Condition: New
Package Type: Box
Magnification Type: Fixed
Quantity: 1
Red Dot Sights-Footprint: RMS

Features of Holosun 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 Contents:

  • Holosun HE507K-GR X2 Green Dot Reflex Sight
  • Multi-Tool
  • Lens Cloth
  • User Manual

Holosun HE507K-GR X2 1x Green Dot Reflex Sight Orderable Models

List of Orderable Models

  • Holosun HE507K-GR X2 Green Dot Reflex Sight 1x, Green Circle Dot/ 2 MOA Dot/ 32 MOA Circle Reticles, Anodized, Black, HE507K-GR X2 , MPN: HE507K-GR X2 , UPC: 810047071389 , Code: 28Y-RD-HRS2-HE507K-GR-X2
  • Holosun HS507K Compact Pistol Reflex Red Dot Sight, 2x 0.58 x 0.77 in, 3 MOA Green ACSS Vulcan Reticle, Black, HE507K-GR-X2-ACSS , MPN: HE507K-GR-X2-ACSS , UPC: 810047072409 , Code: 28Y-RD-HRS2-HE507K-GR-X2-ACSS

Holosun HE507K-GR X2 1x Green Dot Reflex Sight Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Holosun HE507K-GR X2 Green Dot Reflex Sight 1x, Green Circle Dot/ 2 MOA Dot/ 32 MOA Circle Reticles, Anodized, Black, HE507K-GR X2 , MPN: HE507K-GR X2-EDEMO , Code: 28Y-RD-HRS2-HE507K-GR-X2-EDEMO-OB-A
Compare (0)