The SilencerCo threaded barrel for Sig P320c 9mm is a direct replacement for your compact P320's factory barrel, engineered to let you run a suppressor when you're ready. Built from 416R stainless steel and finished in non-reflective black nitride, this barrel handles the abuse of suppressed fire while keeping your sight picture clean. The 1/2x28 thread pattern is the industry standard for 9mm pistol cans, so you'll have no shortage of suppressor options to choose from.

SilencerCo machines every barrel to factory specs—this isn't an aftermarket mod that trades accuracy or reliability for suppressor compatibility. The 1-10" twist rate maintains the precision your P320c demands, whether you're running it at the range, in competition, or in the field. Since you'll be swapping out a critical component, the barrel ships with a thread protector to keep those threads pristine when you're shooting unsuppressed.

Installation is straightforward for anyone comfortable field-stripping a P320, but if you're not confident breaking down your compact, a gunsmith can have you running in minutes. Once it's in, you've got a legitimate suppressor-ready platform that doesn't compromise the reliability Sig built into the compact frame.

Key Features

• 416R stainless steel construction with black nitride finish for corrosion resistance and durability
• 1/2x28 thread pattern compatible with standard 9mm pistol suppressors
• Precision-machined to factory specifications to maintain P320c accuracy and reliability
• 1-10" twist rate optimized for 9mm performance
• Includes thread protector for safe, barrel-first storage and carry without a suppressor
• Drop-in replacement for compact P320 models

Specifications

Caliber	9mm
Thread Pattern	1/2x28
Material	416R Stainless Steel
Finish	Black Nitride
Twist Rate	1-10"
Compatibility	Sig P320c (Compact)
Included Accessories	Thread Protector

Frequently Asked Questions

Will this barrel work with my full-size P320?

No. This is specifically designed for the Sig P320c (compact) model. SilencerCo makes separate barrels for full-size P320 platforms, so check your frame size before ordering.

What suppressors will thread onto this barrel?

Any 9mm pistol suppressor with a 1/2x28 female thread will fit. This is the standard thread pitch for 9mm cans, so you'll have a wide range of popular options from most major suppressor manufacturers.

Do I need a gunsmith to install this barrel?

If you're comfortable field-stripping your P320, you can install this barrel yourself. If you're not, any gunsmith familiar with P320 work can have it installed quickly. It's a straightforward swap with no modifications to your frame.

What's the thread protector for?

The included thread protector keeps the 1/2x28 threads clean and undamaged when you're shooting or carrying the barrel without a suppressor attached. Always cap the threads when running the gun unsuppressed to preserve them for your suppressor.