Sig Sauer P938 9mm Luger 3.50" Threaded Barrel with Protector - Black Steel

The Sig Sauer P938 9mm Luger 3.50" threaded barrel with protector is the factory-original upgrade path for P938 shooters who want suppressor-ready capability. This is the real Sig part—not an aftermarket copy—engineered to the same exacting standards as your pistol. If you're building a dedicated suppressed carry gun, upgrading a worn barrel, or simply want the flexibility to run a muzzle device, this threaded barrel delivers the precision fit and durability Sig is known for.

The 3.50" barrel is chambered in 9mm Luger and features a .5x28 TPI thread pitch—the standard for 9mm suppressors and muzzle brakes. A knurled thread protector cap is included, so your threads stay clean and protected when you're running the gun unsuppressed. The barrel is specially heat-treated for toughness, meaning it's built to handle the pressures of suppressed fire and the wear of regular use without compromise. Sig's factory heat-treatment process goes beyond standard steel and ensures long service life.

Drop-in replacement means no gunsmithing required—if you've already owned a P938, you know how straightforward a barrel swap can be. Whether you're a suppressor enthusiast, a quiet-shooting hunter, or someone who values the option to add a muzzle device down the road, this is the OEM barrel that makes it simple.

Key Features

• Factory Sig Sauer original equipment—exact fitment and durability
• .5x28 TPI threaded muzzle for standard 9mm suppressors and muzzle devices
• Specially heat-treated steel for enhanced toughness and extended service life
• Knurled thread protector cap included to keep threads clean and undamaged
• 3.50" length matches P938 frame dimensions

Specifications

Frequently Asked Questions

What thread pitch does this P938 barrel use?

This barrel is threaded .5x28 TPI, the standard thread pitch for 9mm suppressors and muzzle devices. It will accept any suppressor or muzzle brake designed for that specification.

Can I use this as a drop-in replacement barrel?

Yes. This is the factory Sig Sauer OEM barrel for the P938, engineered for direct fitment. No gunsmithing or fitting is required—it simply replaces your existing barrel.

Is the thread protector cap included?

Yes. A knurled thread protector cap is included with the barrel to protect the threads when you're not running a suppressor or other muzzle device.

What's the barrel length on this P938 barrel?

The barrel is 3.50" in length, matching the original P938 specification.