Sig Sauer P320 Subcompact 9mm Threaded Barrel 4.3"
Sig Sauer threaded barrel for P320 Subcompact and X-Compact models. 9mm, 4.3 inches, 1/2x28 thread pitch. Includes thread protector cap. Compatible with non-LCI variants.
Fits: Sig Sauer P320 Subcompact, Sig Sauer P320 X-Compact
Sig Sauer P320 Subcompact Threaded Barrel
This precision-engineered threaded barrel transforms your Sig Sauer P320 Subcompact or X-Compact into a suppressor-ready platform. Chambered in 9mm Luger with a 4.3-inch length, it features a 1/2x28 right-hand thread pitch—the industry standard for 9mm suppressors and muzzle devices.
Key Features
- Threaded Design: 1/2x28 RH thread pitch for suppressor and muzzle device compatibility
- Compact Profile: 4.3-inch barrel optimized for subcompact and X-Compact P320 frames
- Included Accessories: Thread protector cap included to protect threads when not in use
- Easy Installation: Barrel replacement is straightforward—simply unload the firearm, remove the slide from the receiver and grip module, and slide out the existing barrel
Compatibility
This barrel is designed specifically for P320 Subcompact and X-Compact variants without the loaded chamber indicator (LCI). Verify your firearm's configuration before purchasing.
Specifications
- Caliber: 9mm Luger
- Barrel Length: 4.3 inches
- Thread Pitch: 1/2x28 RH
- Finish: Black Nitron
- Model: 8900445
Whether you're building a dedicated suppressed carry gun or upgrading an existing P320, this barrel delivers the versatility and reliability Sig Sauer is known for.
