Direct-fit red dots for Sig P320 Optics Ready

In this category you can find Holosun SCS red dots that can be mounted directly onto the optic-ready slides of Sig P320 pistols. No adapter plate, no dovetail mount – the optic locks straight into the factory cut in the slide.

On the Sig P320 Optics Ready platform, the Holosun SCS is the genuine direct-fit solution. It follows the profile of the slide, keeps the sight line low and takes full advantage of the original optic interface without adding extra height or hardware.

Why run a direct-fit Holosun SCS on Sig P320 OR?

• Very low mounting height with no separate plate between slide and optic
• Clean, duty- and range-ready configuration with minimal added bulk
• Solid, repeatable connection to the factory optic cut for reliable zero

What if you prefer another red dot?

Most other red dots for the Sig P320 Optics Ready series are installed using an optics-ready plate. Once you choose a plate with the correct footprint for your optic (for example RMR, DPP, RMSc, Acro and others), your P320 becomes compatible with the vast majority of popular pistol red dots on the market.

Start by deciding whether you want the lowest-profile direct-fit option with Holosun SCS, or a plate-based setup that opens up more optic choices. Then pick the footprint and red dot model that best suits your role – from concealed carry and duty use to pure range or competition shooting.

Need help with compatibility?

If you’re not sure whether to go with Holosun SCS or a specific red dot plus plate, contact our team. We’ll help you choose the right combination of optic and mounting solution for your Sig P320 Optics Ready pistol.