Backup Tactical
SIG SAUER P320 FULL-SIZE Barrels
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Manufacturer
SIG SAUER
Model & version
P320 FULL-SIZE · FULL-SIZE
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
13 total
SIG SAUER P320 FULL-SIZEBarrels
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
Backup Tactical1
Based on manufacturer information — Oct 2026.
Ballistic Advantage2
Sig P320 Full QPQ Black Non-Threaded Non-fluted LCI
Sig P320 Full QPQ Black Non-Threaded Non-fluted LCI (BLEM)
Faxon Firearms4
Faxon Match Series Barrel for Sig P320 Full Size with Patented Flame Fluting, 416-R Stainless, Threaded, Chameleon PVD
Faxon Match Series Barrel for SIG P320 Full Size w/ Patented Flame Fluting, 416-R Stainless, Threaded, Chameleon PVD
Faxon Match Series Flame Fluted Barrel for P320 Full Size 9mm
Faxon Match Series Flame Fluted Threaded Barrel for P320 Full Size 9mm
Grey Ghost Precision1
GGP 320 Full Size Threaded Barrel
Killer Innovations1
Velocity Defense for Sig P320 F Barrel
KKM Precision2
Sig Sauer P320 Full Size 9MM Match 4.7"
SilencerCo2
Threaded Barrel — Sig P320 Full Size
Threaded Barrel — SIG P320 Full Size (1/2 X 28)