Herrington Arms
SIG SAUER P320 Magwells
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All SIG SAUER models · magwells →
Manufacturer
SIG SAUER
Model & version
SIG 320C PF320PTEX™
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
5 total
SIG SAUER P320Magwells
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
Herrington Arms1
Based on manufacturer information — Aug 2026.
Springer Precision3
Brass Open/LTD Magwell for Sig Sauer P320 X5/ Legion
ESP/Duty Magwell for Sig Sauer P320 X5/Legion
Open/LTD Magwell for Sig Sauer P320 X5/Legion
Tyrant CNC1
Sig Sauer P320 Magwell