Sig P320 Barrels – Threaded, Fluted & Match-Grade for Compact & Full-Size

Q: Will a compact Sig P320 barrel fit a full-size slide?

No, compact and full-size Sig P320 barrels are not interchangeable due to differences in length and locking lug positions. Always choose the correct barrel for your slide size.

Q: What thread pitch do Sig P320 threaded barrels use?

Most Sig P320 threaded barrels use a 1/2x28 thread pitch, which is standard for 9mm suppressors and compensators.

Sig P320 Barrels – Threaded, Fluted & Match-Grade for Compact & Full-Size

**Backup Barrel Sig P320 ThreadedFde** $161.47

**Backup Barrel Sig P320 Cmpct ThreadedFde** $161.47

**Backup Barrel Sig P320 Cmpct Threaded Blk** $161.47

**Backup Barrel Sig P320 Threaded Blk** $161.47

**Faxon Match Barrel Sig P320 Fs W/ff Tr** $130.73

**Grey Ghost Precision P320 Full Size Barrel Blk Ntride** $177.59

**Grey Ghost Precision Slide Sig P320 Compact V2 Black** $385.43

**Grey Ghost Precision P320 Compact Barrel Blk Nitride** $177.59

**Grey Ghost Precision P320 Compact Tb Black Nitride** $187.19

**Sig Barrel P320sc 9mm 4.3in Tb 1/2 X 28** $206.55

**Sig P320 Pro Slide 9mm 3.9 Or Blk** $272.13

**P320 Full Size 9mm Threaded Barrel** $206.55

**P320 Compact/Carry 9mm Threaded Barrel** $206.55

**P320 XCOMPACT/Subcompact 9mm Threaded Barrel** $206.55

**Sig Barrel P320f 9mm 5.5in Tb 1/2 X 28** $206.55

**P320 Compact/Carry Gold Barrel** $206.55

**True Precision P320c Barrel 9mm Stainless Steel Tb** $170.99

**True Precision P320 X-cmp 9mm Blk Dlc Tb** $189.99

**True Precision P320c Barrel 9mm Blk Nit Tb** $180.49

**True Precision P320 X-cmp 9mm Blk Tb** $180.49

**True Precision P320c Barrel 9mm Cpr** $180.49

**True Precision P320c Barrel 9mm Blk Dlc Tb** $189.99

**True Precision P320c Barrel 9mm Gold** $180.49

Sig P320 Barrels: Upgrade with Precision & Style

If you’re looking to improve your Sig P320’s accuracy, recoil control, or simply refresh its appearance, upgrading to a premium barrel is one of the smartest moves you can make. At Mounts Plus, we offer a wide selection of Sig P320 barrels that fit full-size, compact, and X-Carry models—whether you prefer threaded, fluted, or match-grade options.

Why Upgrade Your Sig P320 Barrel?

Enhanced accuracy and tighter groupings
Suppressor and compensator compatibility with threaded options
Fluted designs for reduced weight and improved heat dissipation
Custom finishes like TiN Gold, Black Nitride, and Stainless Steel

All our barrels are drop-in ready with no gunsmithing required.

Available Sig P320 Barrel Types:

Threaded Sig P320 Barrels: Perfect for suppressor or compensator setups.
Fluted Sig P320 Barrels: Stylish and functional with weight-saving cuts.
Match-Grade Sig P320 Barrels: Designed for ultimate shooting performance.

We stock top brands like True Precision, Grey Ghost Precision, and Faxon Firearms, all trusted for fitment and reliability.

Looking to complete your Sig P320 build? Explore these related options:

Customize your setup with Sig P320 slides designed for optics and barrel upgrades.
Add functionality with our range of Sig P320 optics mounts for red dot sights.
Browse our complete Sig P320 accessories, including grips, holsters, and triggers.
Explore all available pistol barrels for other models and custom builds.

FAQ:

Q: Will a compact Sig P320 barrel fit a full-size slide?
A: No, barrel length and locking lug positions vary by model. Always select the correct barrel for your slide size—compact, full-size, or X-Carry.

Q: What thread pitch do Sig P320 threaded barrels use?
A: Most threaded P320 barrels use 1/2x28 thread pitch, which is standard for 9mm suppressors and compensators.

Q: Do I need a gunsmith to install a new Sig P320 barrel?
A: No, all Sig P320 barrels sold at Mounts Plus are drop-in ready and require no permanent modifications.