SIG THREADED BARREL FOR P938 9MM

Description

The Sig Sauer threaded barrel for the P938 is a direct factory replacement designed for P938 owners who want to run a suppressor on one of the most compact 9mm platforms available. Because it comes from the original manufacturer, it is machined to the same specifications and tolerances as the barrel that ships with the pistol, so fit and function in the frame require no gunsmithing or modification.

The 1:10″ twist rate is well matched to the range of standard and subsonic 9mm projectile weights most commonly paired with suppressed carry pistols. Slower twist rates can underperform with heavier subsonic bullets; at 1:10″, this barrel stabilizes both standard-pressure loads and the heavier subsonic rounds typically chosen for suppressed use without the overstabilization risk that comes with a faster twist on lighter bullets.

The barrel is threaded at the muzzle to accept a suppressor or other muzzle device. Multiple retail listings confirm the thread pattern as .578×28, which is the standard thread pitch for 9mm suppressors, giving owners access to a wide selection of compatible cans. The finish matches the P938’s existing barrel, maintaining the pistol’s appearance when the muzzle device is removed.

This is a purpose-built upgrade for P938 owners, not a universal fit part. If your intent is to suppress the pistol, starting with the factory-threaded barrel eliminates the variables introduced by third-party alternatives and ensures the lockup geometry Sig engineered into the platform is preserved.