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NineX19 3.9″ Match V2 Barrel for SIG P320C / X-Carry
Price range: $79.95 through $154.00
Precision-machined 3.9-inch Match Barrel for the SIG P320 Compact and compatible later-production X-Carry slides. Made in the USA from 416R stainless steel with a broach-cut 1:10 twist, pentagonal fluting, and a deep target crown. Review the X-Carry compatibility information before ordering.
The NineX19 3.9-inch Match Barrel is a precision-machined upgrade for the SIG P320 Compact and compatible later-production X-Carry slides. It combines the distinctive pentagonal fluting of the original NineX19 Match Barrel with an updated barrel hood and deep-cut target crown.
Each barrel is CNC machined in the USA from stress-relieved and heat-treated 416R stainless steel. Broach-cut rifling with a 1:10 twist supports commonly used 9mm ammunition weights ranging from 115-grain range ammunition through 147-grain defensive and competition loads.
SIG P320 Compact Match Barrel Features
- 3.9-inch non-threaded barrel configuration
- Designed for the original SIG P320 Compact
- Compatible with certain later-production SIG P320 X-Carry slides
- CNC machined from stress-relieved and heat-treated 416R stainless steel
- Broach-cut rifling with a 1:10 twist
- Pentagonal flat-fluted exterior
- Updated barrel-hood geometry
- Deep-cut target crown
- Available in Black Nitride, Gunmetal, and Gold Nitride
- Machined in the USA
Does This Barrel Fit the SIG P320 Compact?
Yes. This barrel is designed for the original SIG P320 Compact slide using the standard 3.9-inch barrel configuration.
The P320 fire-control unit can be installed in many different grip modules, but grip-module size alone does not determine barrel compatibility. Match the barrel to the slide length and barrel geometry used by your specific upper assembly.
Does This Barrel Fit the SIG P320 X-Carry?
This barrel fits certain later-production X-Carry slides, but it does not fit every X-Carry slide produced.
Remove the slide and inspect its underside immediately behind the chamber opening. An earlier-production slide marked “1756” is not compatible with this barrel. Later-production X-Carry slides without the “1756” marking use the compatible barrel configuration.
NineX19 guarantees fitment for the original P320 Compact configuration. X-Carry and aftermarket-slide compatibility must be confirmed before the barrel is installed.
Loaded Chamber Indicator Compatibility
Some SIG P320 slides use a mechanical loaded chamber indicator that interacts with a corresponding relief cut in the barrel hood. Confirm whether your slide has this component and whether the selected barrel includes the required relief before installation.
Do not modify the barrel, slide, or loaded chamber indicator solely to force compatibility. Any required inspection or alteration should be completed by a qualified gunsmith.
Does It Fit Wilson Combat, Polymer80, or Icarus Precision Grip Modules?
Barrel compatibility is determined primarily by the slide and upper assembly, not the grip module surrounding the P320 fire-control unit. A compatible 3.9-inch P320 Compact upper can generally be used with an appropriate grip module from Wilson Combat, Polymer80, Icarus Precision, or another manufacturer.
Grip-module compatibility does not guarantee that an unsupported slide or barrel configuration will fit. Confirm the slide model and barrel length independently.
Available Finishes
- Black Nitride
- Gunmetal
- Gold Nitride
Finish availability may vary. Select the currently available finish from the product options above.
Installation and Function Testing
Individual firearm and aftermarket-slide tolerances can vary. Before live-fire use, inspect the installed barrel for proper lockup, chambering, slide movement, and unrestricted operation.
Safely function-test the completed pistol with the ammunition and magazines you intend to use. Installation and inspection by a qualified individual are recommended whenever replacing firearm components.
Important Safety Notice
Always verify that the firearm is unloaded before installation. Do not fire the pistol until barrel fit, slide operation, and safe function have been confirmed. Consult a qualified gunsmith if you are uncertain about compatibility or installation.
Trademark disclaimer: NineX19 products are not manufactured, authorized, endorsed, or warranted by SIG SAUER. SIG SAUER and P320 are trademarks of their respective owners and are used only to identify product compatibility.
| Weight | 5 oz |
|---|---|
| Dimensions | 4 × 7 × 1 in |
| Finish | Black Nitride, Gunmetal, Gold Nitride |
5 reviews for NineX19 3.9″ Match V2 Barrel for SIG P320C / X-Carry
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Jonathan (verified owner) –
Purchased this barrel for my Sig Custom FCU build and the barrel did not disappoint from quality to fit & finish! Tolerance, fit and performance was superb right out of the package, highly recommend! The build and barrel were featured on Sig Sauer’s Instagram page-check it out here: https://www.instagram.com/p/CKjXxq8jbLT/
Manny Raposo –
For the price this barrel is incredible the fit finish and look is incredible. Took out out to the range because that is the true test of a barrel and it did not disappoint. The words match grade are right on point with this barrel. Would highly recommend this barrel to anyone looking to upgrade.
Ray Gross –
shoots every bit as good as my battle arms defense barrel does.Fits perfect, throat feeds great. NO PROBLEMS SO FAR 1000 RNDS. THROUGH BARREL.
Kent (verified owner) –
Purchased a year ago with 500+ rounds through the barrel. More accurate than the stock barrel, and misfeeds either.
Would like to do a 3.6 build, but unfortunately NineX19 does not offer that barrel.
Jeffrey (verified owner) –
Great barrel, fit and finish. The barrel does not have the cutout for the loaded chamber indicator as it shows in the picture on the website so be aware you have to remove the loaded chamber indicator for it to fit. Not a big deal but they need to revise the website.