P365 SAS Optic Adapter Plate

P365 SAS Optic Adapter Plate


PLEASE READ the Installation Manual found HERE


This adapter plate will allow the mounting of the optics that use the Shield RMSc mounting pattern (like the Sig Romeo Zero, Swamp Fox Sentinel, and Holosun 407K/507K) on the Sig P365 SAS. Simply remove the factory rear sight and install the adapter with the included M2.5 x 8mm (T8 Torx Drive) screws. You can then mount your optic to the plate with the included M3 mounting screws. It is required that you apply threadlock (we recommend Vibra-Tite VC-3)  to all hardware to prevent backing out. 


PLEASE NOTE - Due to variances in Sig's dimesions of the SAS sight pocket, final fitting may be required. If you do not feel comfortable performing installation yourself you may send in your slide and plate to have us perform the installation. You will just need to pay for the cost of shipping. 


Plates will ship in 3-4 business days.


Installation Instructions: Click HERE


Package Includes:

1- Sig P365 SAS Optic Adapter Plate finished in Hard Black Anodize

1- 2mm Allen Wrench

2- M3 - 10mm Button Head Screws for Shield RMSc

2- M3 - 10mm Countersink Head Screws for Sig Romeo Zero and Holosun 407/507K

2- M2.5 - 8mm Countersink T8 Torx Screws for securing adapter plate to slide


Items you will need for installation:

T8 Torx driver or bit (to remove factory sight and install plate)

Thread locker - VIBRA-TITE VC3 IS HIGHLY RECOMMENDED!!! Link to purchase HERE.


Installation Instructions can be found HERE


Links to replacement hardware

  • M2.5x.45 8mm  plate mounting screws LINK
  • M3x.5 10mm button optic mounting screws LINK
  • M3x.5 10mm countersink optic mounting screws LINK


Compatible Optics:

Shield Sights

  • RMSc
  • SMSc
  • RMS (will have an overhang)
  • RMSw (will have an overhang)

Sig Optics

  • Romeo Zero (will not work with metal shroud)


  • 507K (includes new X2 models)
  • 407K (includes new X2 models)

Swampfox Optics

  • Sentinel

Riton Optics

  • X3 Tactix MPRD

Zaffiri Precision / Salvo Optics

  • SRC