SIG SAUER M18 Compensators

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Manufacturer

SIG SAUER

Model & version

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

2 total

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2 compensators

What the compatibility labels mean

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

Armory Craft
Sig Sauer Compensators - for 9mm P320 & P226, P228, P229, P225/P6
Based on manufacturer information — Aug 2026.
May require modification — see notes.