Red dot mounts for Sig Sauer models

This collection contains red dot mounts for Sig Sauer pistols without a factory optic cut. The mount replaces the rear sight in its dovetail. You need no slide milling and no permanent modifications. The mounts do not fit Optics Ready variants. For those, see Optics ready plates for Sig models.

Which mount fits which Sig

• P220, P225, P226, P227 and P229: one mount family fits all five. Outer Impact type C and S are made for these models. See Red dot mounts for Sig Sauer P226 and Red dot mounts for Sig Sauer P229.
• P320: the Toni System mounts and the Shield RMSc mount for the P226 family also fit the P320. See Red dot mounts for Sig Sauer P320.
• P226 XFive: its own mounts, Toni System type A and B. On Supermatch variants, the included mounting screw does not tighten properly. See Red dot mounts for Sig Sauer P226 XFive.
• P365: Outer Impact type C and S. See Red dot mounts for Sig Sauer P365.

Footprints

• Shield RMSc (Shield Sights).
• Toni System type A: Shield RMSc, Leupold DPP and Docter.
• Toni System type B: Trijicon RMR and C-More RTS.
• Outer Impact type C: Trijicon RMR, C-More RTS and Docter.
• Type S: Shield RMSc, Leupold DPP and Holosun K-series.

Installation

Drift the rear sight out of the dovetail with a sight pusher or a punch. Push the mount into the same dovetail and fix it. Then screw the red dot onto the mount. No slide milling or permanent modifications are needed. See Installation tools.

Related collections

For iron sights for Sig, including co-witness sights, see Sights for Sig Sauer models. For other brands, see Red dot mounts.

Frequently asked questions

Can I put a red dot on my Sig without an optic cut?

Yes. The mount goes into the rear sight dovetail in place of the rear sight. No milling and no permanent changes, so you can put the rear sight back at any time.

Can I install the mount at home?

Yes, if you have a sight pusher or a punch.

1. Drift the rear sight out of the dovetail.
2. Push the mount into the dovetail and tighten it.
3. Screw the red dot onto the mount with a drop of threadlocker on each screw.

You find the tools in Installation tools.

Which red dots will fit?

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

Find the footprint of your red dot in its specifications and take the mount that names it.

Does the P226 mount fit my P229?

Yes. The mount family fits the P220, P225, P226, P227 and P229.

My P320 is Optics Ready. Will these mounts fit?

No. A pistol with a factory optic cut takes an optic plate, not a mount. See Optics ready plates for Sig models.