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Questions & Answers
Will this work with the Sig P320 AXG Scorpion? Expert Answer

It will not fit without an adapter. The P320 AXG Scorpion is machined to accept a Romeo1 PRO or Leupold Delta Point PRO. To install an RMR-pattern red dot like the Holosun 407/507 models requires an adapter that changes the mounting pattern of your slide.

by Armando R., Gear Expert, March 4, 2021
Customer Reviews
Expert Review
Excellent Optic by Jeremy, Gear Expert, July 28, 2021
I was skeptical about putting a miniature red dot sight(MRDS) on my handguns when they first came out. The process and price at the time seemed like a hassle. These days however its easy to find a milled slide or a local gunsmith who can mill your ...
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34/36 found this helpful
Expert Review
Holosun Listens by Matt S., Gear Expert, January 5, 2021
the original 507c was a great option added to the pistol mounted RDS market. the X2 version provides the updates end users wanted: subdued logo/finish side access battery means you dont need to remove the sight to replace the battery Everything e...
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22/22 found this helpful
Helpful Positive Review
Holosun HS 507C by RAM, Verified Owner, March 7, 2026
Good Quality but have not field tested. Better than a lot of other brands.
1/1 found this helpful
Helpful Positive Review
This is hands-down my favorite dot sight — so good, I bought two. First ran it on a Glock 19, then picked up another for my Sig MPX, mounted on a Scalarworks Leap, and it’s been an absolute rock star in both roles. The ACSS Vulcan reticle is what se...
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3/4 found this helpful
Helpful Positive Review
Works well by Pappa tito, February 17, 2022
Works as intended, made in china which kinda sucks , holds zero well shake awake is nice clear optic. Easy to mount comes with a set of screws. Made from aluminum 3 different reticle styles . Mine came engraved with let’s go Brandon on the side which...
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5/8 found this helpful
Helpful Positive Review
HS507C-X2 - Glock 19 MOS Gen 5 by KT, Verified Owner, December 21, 2023
Over all - 4+ experience. Product: - There is a slight overhang on the slide witch I was aware of and initially concerned; after two hundred rounds it is no big deal. - Appears to be good quality and adjusting to auto dimmer feature. Website: - ...
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1/1 found this helpful
Read All 449 Reviews

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Product Info for Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight

The Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight is the updated version of their popular HS507C red dot, and this reflex sight is the perfect optic to improve your accuracy and performance with your pistol, rifle, or shotgun in close to medium-range engagements. Holosun designed these reflex sights with multi-coated lenses for clear views in any environment, and these Red Dot Sights offer unlimited eye relief for maximum comfort while practicing at the range or protecting others in the field. This open reflex weapon sight offers some upgrades over its predecessor, including Lock Mode to prevent accidental operation and an ergonomic button layout for easy access.image

The HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight is perfect for CQB engagements, and you can get up to 50,000 hours of battery life per use. What's more, you have access to 12 brightness settings and multiple reticle options so that you can best match your reticle to your ambient lighting conditions, and two of those settings are compatible with night vision devices. The Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight is available with a circle-dot reticle or the ACSS Vulcan reticle. If you want to improve your reaction time and precision with your pistol, pick up this Holosun reflex sight and unleash your full potential.

Mount Not Included.

What is the difference between Holosun 507C X2 and 507C V2?

The Holosun 507C V2 reflex sight was the second generation of the 507C series and has been discontinued. The Holosun 507C X2 is the third generation of the 507C series and is currently available for purchase. The X2 version is essentially the same as the V2 series, except the size and location of the buttons are different. Holosun 507C-X2 reflex sights also provide updated features like Lock Mode and a side-access battery tray.

What is the difference between Holosun HE507 and HS507?

The Holosun HE507 features a green reticle, while the Holosun HS507 offers a classic red reticle.

What is the difference between Holosun 507C X2 and 507K X2?

The Holosun 507K X2 is smaller and lighter than the 507C X2. However, the 507C X2 has a built-in solar panel, but the 507K X2 does not.

WARNING: California`s Proposition 65

Specifications for Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight:

Manufacturer: Holosun
Magnification: 1 x
Illumination Type: LED
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Open
Battery Quantity: 1
Water Resistance Level: IP67
Length: 1.78 in
Weight: 1.5 oz
Condition: New
Magnification Type: Fixed
Quantity: 1
Red Dot Sights-Footprint: RMR

Features of Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight:

  • Great for handguns, rifles, PCCs, and shotguns
  • Solar failsafe
  • Exclusive, patent-pending ACSS Vulcan reticle
  • Large outer reference circle can be deactivated per user preference
  • 10 MOA center chevron
  • 2 Reticle modes
  • Shake awake technology
  • Red LED
  • Multicoated glass
  • 7075-T6 aluminum construction
  • Black hardcoat anodized
  • Convenient battery tray
  • Up to 20,000-hour battery life
  • Powered by (1) CR1632 Li Ion Battery
  • Holosun Limited Lifetime Warranty

Package Contents:

  • Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight

Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • Holosun HS507C-X2 Reflex Red Dot Sight, 2 MOA Dot & 32MOA Circle Reticle, Black, HS507C-X2 , MPN: HS507C X2 , UPC: 810047071174 , Code: 28Y-RD-HOL203-HS507C-X2
  • Holosun HE507C-GR-X2 Green Dot Sight 1x, 2 MOA Dot & 32 MOA Circle, Black, HE507C-GR-X2 , MPN: HE507C-GR X2 , UPC: 810047071280 , Code: 28Y-RD-HOL203-HE507C-GR-X2
  • Holosun OPMOD HS507C-X2 Reflex Red Dot Sight, Red 2 MOA Dot and 32 MOA Circle, Wolf Gray , MPN: HS507C-X2 WG-KIT2023 , Code: 28Y-RD-HOL203-HS507C-X2-WG-KIT2023
  • Holosun OPMOD HS507C-GR-X2 Reflex Red Dot Sight, Green 2 MOA Dot and 32 MOA Circle, Wolf Gray , MPN: HE507C-GR-X2 WG-KIT2023 , Code: 28Y-RD-HOL203-HE507C-GR-X2-WG-KIT2023
  • Holosun HS507C-X2 Reflex Red Dot Sight, ACSS Vulcan Reticle, Black, HS507C-X2-ACSS , MPN: HS507C-X2-ACSS , UPC: 810047071143 , Code: 28Y-RD-HOL203-HS507C-X2-ACSS
  • Holosun HE507C-GR-X2 Green Dot Reflex Sight, ACSS Vulcan Reticle, Black, HS507C-GR-X2-ACSS , MPN: HS507C-GR-X2-ACSS , UPC: 810047071365 , Code: 28Y-RD-HOL203-HS507C-GR-X2-ACSS

Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Holosun HE507C-GR-X2 Green Dot Reflex Sight, ACSS Vulcan Reticle, Black, HS507C-GR-X2-ACSS , MPN: HS507C-GR-X2-ACSS-DEMO , Code: 28Y-RD-HOL203-HS507C-GR-X2-ACSS-DEMO
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