First Look: SIG Sauer Threaded Barrels for P320 Handgun

posted on June 24, 2021

The SIG Sauer P320 was introduced in 2014, creating unmatched flexibility and adaptability for American pistol owners. The P320 platform allows you to quickly change almost anything about your pistol, including caliber, slide length and frame size.

Part of a pistol’s flexibility is what you add to the barrel itself, and the most common way to perform that task is to add threads to the muzzle of the barrel. This allows you to attach common muzzle devices such as a compensator, which direct a portion of the gasses from the pistol upwards to control recoil. A threaded barrel also allows you to attach a suppressor to your pistol, such as the SIG Sauer MODx-9 or SRD-9 9 mm suppressors.  

A suppressor dramatically reduces the amount of noise and muzzle blast that comes out from your gun, and they are an excellent way for new gun owners to become more accustomed to the mechanics of shooting. The process of adding a suppressor to your pistol begins with adding a threaded barrel, and SIG Sauer is making it easy to do this with your P320 Compact, XCompact and Subcompact pistols.  

These two new barrels allow you to attach your muzzle device or suppressor to your gun. These 9 mm threaded barrels are designed to function with SIG Sauer factory slides with loaded chamber indicators. 

P320 Compact/Subcompact Threaded Barrel Features

  • 9 mm Caliber
  • Standard 1/2 X 28 RH thread pitch
  • Heat-treated for toughness and durability
  • Includes threaded protector end cap for use without suppressor or muzzle device
  • Easy to install in just minutes, with no special tools needed.
  • P320 Compact Threaded Barrel Length: 4.6 inches
  • P320 XCompact/Subcompact Threaded Barrel Length: 4.3 inches.

MSRP for the XCompact/Subcompact threaded barrel is $199.99, and MSRP for the P320 Compact threaded barrel is also $199.99. For more information on these products or other items from SIG Sauer, please visit



handgun magazines
handgun magazines

Why Choose A Slim Pistol?

Handgun thickness is dictated by magazine dimensions, which vary based on capacity, construction and feed geometry.

Review: Bushnell Match Pro ED 5-30x56 mm

Let’s start with the non-traditional review stuff right now. The new Match Pro ED 5-30x56 mm scope from Bushnell is not earth-shattering.

Red Dots for Old Eyes

It has happened against my will and without my permission, but I got old. Parts of me did anyway. I first noticed it in my late 40s when I had trouble reading the headstamp on a cartridge.

First Look: Vortex Defender-CCW Micro Red Dot

Designed from the ground up with concealed carry in mind.

Shoot United Launches 2023 Nationwide Event Schedule

Twenty events across the country, all designed to introduce people to the shooting sports.

First Look: Safariland Nexbelt L930

A secure and almost infinitely adjustable foundation for you concealed carry gear.


Get the best of Shooting Illustrated delivered to your inbox.