Backup Tactical Threaded Barrel for Full Size Sig P320 - Titanium Nitride

Manufactured by BACKUP TACTICAL
Manufactured by BACKUP TACTICAL
3 Reviews

In Stock

Standard orders will ship out in 1 business day (M-F) if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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The Backup Tactical Threaded Barrel for Sig P320 Full Size 9mm pistol is precision machined from 416 stainless steel, features pulled broached rifling, and is chambered in 9mm to SAAMI specifications. This barrel for the Sig P320 features a drop-in fit and is threaded 1/2x28 for attaching compensators or suppressors. A durable Titanium Nitride coating prevents rust. Upgrade your Full Size Sig P320 pistol with a Backup Tactical threaded barrel.

  • Titanium Nitride finish
  • 416 stainless steel
  • 9mm SAAMI Spec Chamber
  • Pulled broached rifling
  • 1:16 twist rate
  • Includes thread protector
  • Drop-in fit

Backup Tactical provides a variety of precision barrels for all the popular handguns, so you can easily and confidently customize your pistol to fit your needs. Every barrel is produced in small batches to ensure the highest level of quality.
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Barrel CoatingTitanium Nitride
Barrel Length5.0
Barrel Material416 Stainless Steel
BrandBackup Tactical
Caliber Gauge9mm Luger
PlatformSIG Sauer Handguns
Thread Pattern1/2 X 28
Twist Rate1:16
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

3 reviews

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Golden Touch

by -

FDE with Black slide and flashes of Gold. Suppressor capability.


by -

nice barrel for the price. dropped in perfectly

Seems like a tight fit, but overall seems ok

by -

Bought for my full size p320 , the logo sits so low that you can only really read like the top half of it. While the slide was locked back I released it and the slide got caught along the top of the barrel and prevented the slide from fully going forward. After lightly lubricating the top of barrel and manually racking and releasing it several times it now seems to function normally. Haven’t had chance to fire yet. This barrel is designed to fit in a standard factory p320 full size correct ?