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What plate/adapter do I need to mount the HS507C-X2 to a Sig Sauer P322 pistol. — 2 Answers

by Chuck, from GA, United States Asked on May 19, 2022

Name Holosun HS507C-X2 1x 2 MOA Dot Reflex Red Dot Sight (4.8)
As Low As $232.99 Save Up to 26%
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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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Answered by medic42217, member, from FL, United States, on December 15, 2022

NDZ Performance RMSC RMR Holosun 407K 507K Adapter Plate for Springfield Hellcat & Hellcat Pro 9MM Anodized Aluminum in Black https://a.co/d/4o8p1g9

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Last updated 2025-11-12 UTC.