Q&A for Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight

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

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Jason, guest, from TX, United States, asked on September 18, 2021

Seen it asked if it comes with a picatinny mount and been answered yes but description says no mount included. HS507C-X2-ACSS clarification please.

Expert Answer

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

This will not include a low profile Picatinny mount.

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Vince, guest, from MT, United States, asked on February 12, 2021

Will this work with the Sig P320 AXG Scorpion?

Expert Answer

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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MDF, member, from AL, United States, asked on July 01, 2022

Is this Holosun HS507C-X2 Reflex Red Dot Sight ACSS Vulcan available with the green laser?

Expert Answer

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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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

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

Will this model fit directly to the Mossberg 940 Tactical?

Expert Answer

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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Deo, member, from FL, United States, asked on September 09, 2021

Can this be "Low Mounted" on to the Picatinny rail on a Benelli M4 Tactical ..keeping the Ghost ring sight?

Expert Answer

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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Big Sky Maverick, guest, from MI, United States, asked on May 31, 2021

Will this Holosun fit on a FN FNX Tactical 45? Which model of the Holsun will fit best? Which model do you recommend over all?

Expert Answer

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

Will this work with a Sig P365XL?

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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Rob, guest, from FL, United States, asked on July 13, 2026

What mount will allow it to be mounted to the side so the factory sights can also be used on the 1301 m2 c

Expert Answer

Answered by Stevey GB, Gear Expert, from TX, United States, on July 14, 2026

Here's a link to a variety of 45 degree and Picatinny side mounts that will work for that sight, which uses an RMR footprint. You have a top quality and expensive shotgun, you have great taste. If you want a side mount with that same quality you can choose from this link: https://www.opticsplanet.com/s/picatinny-45-degree-side-mount . Trijicon makes one and it's one of the best, but pricey. https://www.opticsplanet.com/trijicon-rmr-45-degree-offset-quick-release-mount.html It has one of the best attachment methods and materials I've used.

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

Will this fit a Colt1911 Competition

Expert Answer

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&A for Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight — 469 Questions & 324 Answers