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Q&A for Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight — 436 Questions & 323 Answers

Name Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight (4.8)
As Low As $274.99 Save Up to 29%
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Expert Answer
A
Answered by Patrick, Gear Expert, from IL, United States, on October 06, 2021

This will not include a low profile Picatinny mount.

22 of 34 found the following answer helpful.
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Q
Vince, guest, from MT, United States, asked on February 12, 2021

Will this work with the Sig P320 AXG Scorpion?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on March 04, 2021

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.

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Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on July 18, 2022

The Holosun Exclusive Holosun 507 Red Dot Reflex Sight at the link below has a green illuminated reticle. That model also uses the ACSS reticle. It is model number HE507C-GR-X2-ACSS.
https://www.opticsplanet.com/holosun-he507c-x2-acss-pistol-green-dot-sight.html

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Q
Chuck, member, from GA, United States, asked on May 19, 2022

What plate/adapter do I need to mount the HS507C-X2 to a Sig Sauer P322 pistol.

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 31, 2022

The Sig Sauer P322 uses the Shield RMSc optic cut. This Holosun 507c uses a Trijicon RMR mounting fooprint. The RMR footprint is a much larger, full size optic footprint compared to the Shield RMSc. You would only be able to use micro optics such as the Sig Romeo Zero, Shield RMSc, and Sig Romeo Zero Elite.

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Q
Chris, member, from WA, United States, asked on April 21, 2022

Will this model fit directly to the Mossberg 940 Tactical?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 29, 2022

The Holosun HS507C-X2 Reflex Red Dot Sight comes with a picatinny rail mount. So the Holosun HS507C-X2 Reflex Red Dot Sight can be mounted to a Mossberg 940 Tactical if it has a picatinny rail on the receiver.

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Expert Answer
A
Answered by Patrick, Gear Expert, from IL, United States, on October 06, 2021

This product includes a low profile Picatinny mount.

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Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 06, 2021

Yes, this will work on your FNX Tactical 45 using the supplied plates that came with your pistol. You would need to use the RMR footprint plate. As for which model is best, that is completely subjective. This one has the 3 reticle options with the solar failsafe, which is very versatile.

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Q
Reiverman, member, from ID, United States, asked on September 09, 2020

Will this work with a Sig P365XL?

A
Answered by RMS, member, from IA, United States, on January 10, 2021

The 507k x2 is a better choice. It is made to fit the Sig P365XL. This one is pretty wide and would need a separate adapter plate, assuming one is available.

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Q
LesPaul Jr, guest, from RI, United States, asked on August 21, 2025

Will this fit a Colt1911 Competition

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on August 21, 2025

The Holosun HS507C-X2 will be compatible with optic ready Colt 1911 Competition model pistols. However, an adapter plate will be required. The correct adapter plate is the Colt 1911 RMR Optics Plate Sku# SP301327, which can be found linked below:
https://www.opticsplanet.com/colt-sp301327-1911-rmr-plate.html

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Q
Jeremy Geboy, guest, from OH, United States, asked on October 28, 2024

Will this work with a Glock 19 gen 3?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on October 28, 2024

To mount the Holosun HS507C-X2 to a Gen 3 Glock 19, you will need to mill the slide for an optic or use a dovetail adapter plate. The dovetail adapter would replace your rear sight with an optic plate that allows you to install this optic. The Evolution Gun Works Trijicon RMR Sight Mount is compatible with your Glock and can be found linked below:
https://www.opticsplanet.com/evolution-gun-works-trijicon-rmr-sight-mount-1-780-in-aluminum.html?_iv_gun-model=glock-19

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