The SIG P365X is cut for the Shield RMSc footprint, so optics with that footprint mount directly with no plate. RMSc/Romeo Zero cut: Shield RMSc, Romeo Zero/Zero Elite, Romeo-X Compact and Holosun 407K/507K/EPS Carry mount direct with P365-length screws.
Below are the red dots and weapon lights we carry that fit the SIG P365X, checked against our fit database. For the full list with filters, use our Pistol Optic Finder.
Red dots that mount directly on the SIG P365X
- Holosun 407K X2, Red Dot, 6 MOA Dot – Mounts direct — no plate
- Holosun 407K X2 Green Dot, Black Color, Side Battery – Mounts direct — no plate
- Holosun 507K X2, Red Dot, 32 MOA Ring & 2 MOA Dot – Mounts direct — no plate
- Holosun 507K X2, Green Dot, 32 MOA Ring & 2 MOA Dot – Mounts direct — no plate
- Holosun EPS Carry, Reflex Sight, 6 MOA Red Dot – Mounts direct — no plate
- Holosun EPS Carry, Reflex Sight, 2 MOA Red Dot – Mounts direct — no plate
- Holosun EPS Carry, Gold Dot, Enclosed Pistol Sight (EPS-CARRY-GD-6) – Mounts direct — no plate
- Holosun EPS Carry, Gold Dot, Enclosed Pistol Sight (EPS-CARRY-GD-2) – Mounts direct — no plate
- Holosun EPS Carry, Reflex Sight, 6 MOA Green Dot – Mounts direct — no plate
- Holosun EPS Carry, Reflex Sight, 2 MOA Green Dot – Mounts direct — no plate
- Holosun Ronin EPS Carry, Red Dot, Non-Magnified – Mounts direct — no plate
- Holosun EPS Carry MRS, Reflex Sight, Multiple Reticle (EPS-CARRY-RD-MRS) – Mounts direct — no plate
Red dots that fit with an adapter plate (sold separately) on the SIG P365X
- Trijicon RMRcc (Concealed Carry), Micro Reflex Sight, 13mm Objective Lens (CC07-C-3100002) – Needs: Trijicon RMRcc adapter plate AC32096
- Trijicon RMRcc (Concealed Carry), Micro Reflex Sight, 13mm Objective Lens (CC06-C-3100001) – Needs: Trijicon RMRcc adapter plate AC32096
- Midwest Industries MK2 45 Degree Offset Cap for Trijicon RMR, 34mm, Black – Needs: RMSc → RMR adapter plate (aftermarket)
- Midwest Industries MK2 45 Degree Offset Cap for Trijicon RMR, 30mm, Black – Needs: RMSc → RMR adapter plate (aftermarket)
- Trijicon RMR Matte Black Aluminum Compatible w/ 3×24/3×30 ACOG w/Boss – Needs: RMSc → RMR adapter plate (aftermarket)
- Reptilia ROF-90 Flat Dark Earth Anodized Geissele 30mm Super Precision & Trijicon RMR – Needs: RMSc → RMR adapter plate (aftermarket)
- Reptilia ROF-90 Black Anodized Geissele 30mm Super Precision & Trijicon RMR – Needs: RMSc → RMR adapter plate (aftermarket)
- Reptilia ROF-90 Flat Dark Earth Anodized Geissele 34mm Super Precision & Trijicon RMR – Needs: RMSc → RMR adapter plate (aftermarket)
- Reptilia ROF-90 Black Anodized Geissele 34mm Super Precision & Trijicon RMR – Needs: RMSc → RMR adapter plate (aftermarket)
- Radian Weapons Guardian Optic Guard Black Glock MOS Holosun HS507 Comp – Needs: RMSc → RMR adapter plate (aftermarket)
- Radian Weapons Guardian Optic Guard Black Frame Compatible w/Glock MOS Trijicon RCR Footprint – Needs: RMSc → RMR adapter plate (aftermarket)
- Holosun 407C X2, Red Dot, 2 MOA – Needs: RMSc → RMR adapter plate (aftermarket)
Plates and mounts for the SIG P365X
- Trijicon RMRcc, Adapter, Fits SIG P365xl – Trijicon RMRcc adapter plate
SIG P365X red dot FAQ
What optic footprint does the SIG P365X use?
The SIG P365X is cut for the Shield RMSc footprint, so optics with that footprint mount directly with no plate.
Can you help me pick the right sight?
Yes. Contact us with your exact pistol and we’ll confirm the sight, plate and screws before you order. We’re a veteran-owned, authorized dealer based in Irvine, California, and we ship to California and nationwide.
