The SilencerCo 9mm threaded barrel for the Sig P226 (SilencerCo part no. AC859) is the replacement barrel that lets a P226 take a pistol suppressor. It is threaded 1/2×28 and made of 416R stainless steel finished in black nitride. SilencerCo notes that all pistol suppressors need a threaded barrel and built this line to the same standard as its suppressors. A thread protector ships with the barrel to cover the threads when no suppressor is attached. It suits P226 owners building a suppressed duty-size 9mm.

Key Specifications

• The caliber is 9mm, matching the Sig P226 chambering.
• The muzzle thread is 1/2×28, the standard pitch for 9mm pistol suppressors.
• It is made for the Sig P226, the full-size 9mm Sig pistol.
• The barrel length is 4.5 inches, the length listed for this P226 version.
• The material is 416R stainless steel, a machinable, corrosion-resistant barrel steel.
• The finish is black nitride, which adds wear resistance to the surface.
• The rate of twist is 1:10 right-hand, a common twist rate for 9mm.
• A thread protector is included to cover the threads when no suppressor is mounted.
• The barrel is threaded for suppressor use, which stock pistol barrels are not.

Frequently Asked Questions

What thread does the P226 barrel use? It is threaded 1/2×28, the pitch used for 9mm pistol suppressors.

Does the barrel include a thread protector? Yes. SilencerCo includes a thread protector with its threaded pistol barrels, except blemished barrels.

What is the barrel made of? SilencerCo makes its threaded pistol barrels from 416R stainless steel and finishes them in black nitride.

Buy the SilencerCo Threaded 9mm Barrel for Sig P226, Black Nitride Stainless

A threaded barrel is what separates a P226 that can mount a suppressor from one that cannot. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more from SilencerCo in our handgun barrels.