Optics ready plates for Sig models

This collection contains optic plates for Sig pistols with a factory optic cut. Most plates are for the P320, a few for the P365, P365 X and P365 XL. On the P320, choosing the plate needs the most care. Sig has made it with several slide cuts.

Sig P320: find your slide cut first

The plates are sorted by slide cut, not only by model name:

• Slides with the Pro Cut: plates for P320 Optics Ready models such as the XTen, Full-Size and Compact. See Optics ready plates for Sig P320 models with Pro Cut.
• Slides with a removable rear sight: plates for the P320 M17, M18, XCarry, XFive and MAX. See Optics ready plates for Sig P320 models with removable rear sight.
• P320 XFive made from 2014 to 2018: this older slide has its own plate, an Outer Impact type C. See Optics ready plates for Sig P320-XFIVE [2014 - 2018].

A plate for one slide cut does not fit another. If you are not sure about your slide, compare it with the photos on the product pages. For an overview of all P320 plates, see Optics ready plates for Sig P320 models [all].

Step by step

1. Find the exact model of your P320, for example M17, XCarry or XTen.
2. Find its slide cut in the list above. For the XFive, also check the production year.
3. Find the footprint of your red dot.
4. Choose a plate for your slide cut that names this footprint.

Footprints for the Pro Cut

• Trijicon RMR, from 2BME and Night Fision.
• Holosun K-series and Holosun EPS, from 2BME.
• Outer Impact type C: Trijicon RMR, C-More RTS and Docter.

Footprints for slides with a removable rear sight

• Single footprints: Trijicon RMR, Shield RMSc and Aimpoint Acro.
• Toni System type H: C-More RTS and Docter.
• Toni System type I: Trijicon RMR, Shield RMSc and Leupold DPP.
• Outer Impact type C: Trijicon RMR, C-More RTS and Docter.
• Outer Impact type S: Shield RMSc, Leupold DPP and Holosun K-series.

For the Aimpoint Acro, there is also a version with an integrated rear sight. It lets you co-witness through the Acro.

Sig P365, P365 X and P365 XL

For the P365 family, EGW makes a plate for the Trijicon RMR. Outer Impact adds a type C for RMR, RTS and Docter. See Optics ready plates for Sig P365.

Direct-fit red dot

The Holosun SCS 320 fits the P320 optic cut without a plate.

All optic plates at a glance

The table lists every product in this collection. The middle column gives the footprints, so you can check at once which red dots it takes.

Installation

Remove the factory cover plate from the optic cut. Screw the optic plate into its place, then screw the red dot onto the plate. No milling is needed and you can do it yourself. Threadlocker on the screws is recommended.

Related collections

For Sig pistols without an optic cut, see Red dot mounts for Sig Sauer models. For co-witness sights for Sig Optics Ready models, see Sights for Sig Sauer models. For other brands, see Optics ready plates.

Frequently asked questions

Can I install an optic plate on my Sig at home?

Yes. You need no gunsmith and no milling.

1. Remove the cover plate from the optic cut.
2. Screw the optic plate into the cut.
3. Screw the red dot onto the plate.

Put a drop of threadlocker on every screw.

Which red dots will fit my Sig?

It depends on the plate you choose. Every plate takes one footprint or a group of footprints. For Sig pistols we have plates for the Trijicon RMR, Shield RMSc, Holosun K-series, Leupold DPP, Docter, C-More RTS, Aimpoint Acro and Holosun EPS footprints.

Choose your red dot first and find its footprint in the specifications. Then take the plate with the same footprint.

Which plate fits my P320 M17?

A plate for P320 slides with a removable rear sight, with the footprint of your red dot.

Which plate fits my P320 XTen?

A plate for slides with the Pro Cut, with the footprint of your red dot.

I have an older XFive. Which plate?

The XFive made from 2014 to 2018 has its own plate, the Outer Impact type C. Newer XFive models take the plates for slides with a removable rear sight.