Aimpoint
SIG SAUER P320-M18 Optic Plates
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Manufacturer
SIG SAUER
Model & version
P320-M18 · M18
Mounting details
MIL-STD-1913 Picatinny, Leupold DeltaPoint Pro, SIG SAUER P320 PRO optic cut (ROMEO1PRO / DPP pattern, P320 / M17 / M18 / AXG slides)
Parts listed
20 total
SIG SAUER P320-M18Optic Plates
What the compatibility labels mean
How we knowHow we check compatibility
- Lab testedFit checked by Firearm Lab for the recorded setup.
- Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
- Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.
Check your exact model and part before ordering. Fitment limits
Aimpoint1
Based on manufacturer information — Oct 2026.
C&H Precision18
SIG P320 RX / Pro Series / AXG to Aimpoint ACRO / C&H DUTY / DUTY-XL STEEL
SIG P320 RX / Pro Series / AXG to C&H COMP with Protective Shroud
SIG P320 RX / Pro Series / AXG to Holosun 407k / 507k / Vortex Defender CCW / C&H EDC / EDC Enclosed / Olight Osight S
SIG P320 RX / Pro Series / AXG to Holosun 509 ACSS (Primary Arms) (STEEL)
SIG P320 RX / Pro Series / AXG to Holosun 509T (STEEL)
SIG P320 RX / Pro Series / AXG to Holosun EPS / EPS CARRY / SCS CARRY
SIG P320 RX / Pro Series / AXG to Steiner MPS (STEEL)
SIG P320 RX / Pro Series to Holosun 508T
SIG P320 X-FIVE M17 M18 Romeo1Pro / DPP Cut to Holosun 509 ACSS (Primary Arms) (STEEL)
SIG P320 X-FIVE M17 M18 Romeo1Pro / DPP Cut to Holosun 509T STEEL
SIG P320 X-FIVE M17 M18 Romeo1Pro / DPP Cut to Holosun EPS/ EPS CARRY / SCS CARRY
SIG P320 X-Series / Legion w/ Romeo1Pro / DPP Cut to Aimpoint ACRO (STEEL)
SIG P320 X-Series / Legion w/ Romeo1Pro / DPP Cut to Aimpoint ACRO / C&H DUTY / DUTY-XL / Olight Osight X (STEEL)
SIG P320 X-Series / Legion w/ Romeo1Pro / DPP Cut to Steiner MPS (STEEL)
Springer Precision1
Optic Mount for Sig Sauer P320 Pro Cut Slides