Faxon SIG P320 Full Size Flame Fluted Threaded Barrel
$139.00 – $152.00Price range: $139.00 through $152.00
Match Series P320 Full Size pistol barrels from Faxon. These are threaded barrels available in either TiN PVD or Black Nitride finish. Ensure you read the full description below.
Description
Faxon’s Match Series pistol threaded barrels for SIG Sauer® P320 are machined from stress-relieved 416-R stainless steel. These barrels are then given a black Nitride or PVD coating to increase lubricity, barrel life, and resistance to surface wear.
All barrels are conventionally rifled to allow a broader range of ammunition, including cast lead. The barrels drop into many factory-spec slides with no fitting required. These barrels do not fit SIG Pro-Cut slides.
These match series barrels feature better-than-factory tolerances ensuring a consistent, tighter lockup than OEM.
SIG P320 Full Size Threaded Barrel Technical Specifications
- Handgun Type: Sig P320 Full Size
- Barrel Caliber: 9mm, superior accuracy with complete SAAMI compatibility and boring reliability
- Barrel Profile: Flame Fluted, Drop-In
- Barrel Material: 416-R Stainless Steel
- Barrel Twist: 1:10
- Muzzle Thread: 1/2×28
- Crown: 11-degree Target Crown
- Rifling Method: Button
- Rifling Type: Conventional
- Inside Finish: Salt Bath Nitride
- Outside Finish: Salt Bath Nitride
SIG P320 Full Size Threaded Barrel Fit Guide
These barrels fit the following models.
- SIG P320 Full Size
The Full Size P320 comes standard with a 4.7″ barrel. This barrel will protrude, as it features a threaded design.
* Not compatible with X Series pistols (including the X5 and X5 Legion) models or slides with a Tactile Loaded Chamber Indicator (Including the M17 variant slides)
These barrels do not fit SIG Pro-Cut slides.
Manufacturer Part Numbers
- Nitride: MPN 320B910NFLOQ-T, UPC 816341023017
- TiN: MPN 320B910NFLOQ-T-TiN, UPC 816341023703
Additional information
| Shipping Weight | .35 lbs |
|---|---|
| Shipping Dimensions | 5 × 1.5 × 1.5 in |
Variation SKUs
| Variation | SKU | Stock Status |
|---|---|---|
| Finish: Nitride | BRL-FAXON-320-FS-T-NIT | Out of stock |
| Finish: Titanium Nitride (TiN) | BRL-FAXON-320-FS-T-TIN | Out of stock |
2 reviews for Faxon SIG P320 Full Size Flame Fluted Threaded Barrel
| 5 star | 50 | 50% |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 50 | 50% |
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Faxon SIG P320 Full Size Flame Fluted Threaded Barrel
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Disclaimer
Many parts sold by Grayguns - including but not limited to triggers, trigger kits, internal components and spring kits - are intended for installation by a qualified armorer or gunsmith who is familiar with the firearm.
Although kits fit with no issues in a great majority of pistols, Grayguns cannot guarantee perfect functionality in every instance.
Due to varying tolerances present in all mass-produced firearms, professional fitting by a qualified armorer who is familiar with the pistol's action may be required.
Grayguns offers installation services for all parts kits we offer. If you have any issues or questions about the installation process, STOP IMMEDIATELY and contact the Grayguns Customer Service Team.




I have to give this a good review, however I am unable to use this barrel.
I failed to identify my weapon as a P320 X5 and it turns out that it is just that. My error and at this time I have no use for this bar barrel. I will say that the process of buying this was very easy and the shipment was prompt and well packaged. This was not my first order from Grayguns and will not be my last.
The barrel looks to be high quality. The dimensions don’t appear to be accurate on the page listing in additional information for full size or compact. Bought for a full size 320 and it sticks out an inch passed the slide
John, did you contact our customer service team about this? The Full Size P320 has a 4.7″ barrel and it is a bit longer (about 5.5″) for a threaded version. So the threaded version will stick out a bit. We will reach out to you or please give us a call. The “dimensions” and total weight you see under additional information is the package information, not the product size. We will work to clarify that.
[Update: We reached out directly to John to help resolve any issues, but as of July 30, we have not heard back from him.]