Sco Threaded Barrel for Sig P320 Full-Size 9mm 1/2x28

If you're ready to run a suppressor on your Sig P320 Full-Size, the SilencerCo threaded barrel for Sig P320 Full-Size 9mm delivers the foundation you need. This is a direct factory-spec replacement barrel that threads on to accept 1/2x28 suppressors — opening up a whole category of sound-reduction options for range work, hunting, and defensive training without requiring a complete build or gunsmith visit.

Built from 416R stainless steel and finished in non-reflective black nitride, the SilencerCo threaded barrel maintains the reliability and point-of-aim accuracy of your stock P320. The 1-10" twist rate handles standard 9mm ammunition as your rifle does, so you're not trading inherent performance for the ability to suppress. Every barrel ships with a thread protector, so you can shoot suppressor-ready without worrying about thread damage when running the gun bare.

This is a no-compromise part swap — drop it in and your P320 is suppressor-compatible. Whether you're a serious handgun competitor, a hunter looking to keep hearing protection low on the priority list, or someone who simply prefers a quieter training session, a threaded barrel is the fastest way to make that happen on a full-size P320.

Key Features

• 416R stainless steel construction with black nitride finish for durability and corrosion resistance
• 1/2x28 threading accepts most common pistol suppressors
• 1-10" twist rate preserves point-of-aim and accuracy
• Machined to factory specifications — maintains P320 reliability and performance
• Thread protector included to protect threads when shooting unsuppressed
• Direct drop-in replacement for Sig P320 Full-Size platform

Specifications

Frequently Asked Questions

Will this threaded barrel fit my Sig P320 Full-Size?

Yes — this is a direct replacement barrel engineered to factory specifications for the Sig P320 Full-Size platform. It's a straightforward swap.

What suppressors will work with the 1/2x28 threads?

The 1/2x28 thread pattern accepts a wide variety of common pistol suppressors. Your suppressor of choice will need to be rated for 1/2x28 and 9mm; verify compatibility with your suppressor's documentation.

Can I shoot my P320 without a suppressor once I install this barrel?

Yes. The barrel ships with a thread protector to guard the threads when you're shooting suppressor-ready but running the gun unsuppressed. Simply install the protector on the barrel.

Does this barrel change the accuracy or reliability of my P320?

No. The barrel is precision machined to factory specifications and maintains the reliability and point-of-aim accuracy you expect from your P320.