Sig Sauer P320 X-Series TXG Grip Module 9mm Luger/40 S&W/357 Sig - Small

The Sig Sauer P320 X-Series TXG Grip Module is a factory OEM polymer grip module for Sig Sauer's modular P320 pistol platform, molded from tungsten-infused heavy polymer in a gray finish. Designed to accept the P320 Fire Control Unit (FCU) and a full-size P320 slide with a 4.70 inch barrel, this TXG module allows caliber conversion between 9mm Luger, 40 S&W, and 357 Sig on a single FCU.

Marketed as TXG (Tungsten X-Grip), this X-Series upgrade uses high-density tungsten-loaded polymer to add weight low in the grip, reducing felt recoil and muzzle rise for faster, flatter follow-up shots. The added mass is especially noticeable in the snappier 40 S&W and 357 Sig chamberings, producing a softer-shooting package than the standard polymer grip module.

This is the small grip configuration, sized for shooters with smaller hands or anyone who prefers a shorter trigger reach on a full-size slide. The grip module houses the magazine release, takedown lever, and integrated accessory rail, and is finished in Sig Sauer's signature gray color used across the X-Series line.

Sold as the grip module assembly only. The P320 Fire Control Unit (FCU), slide, barrel, sights, and magazines are not included and must be sourced separately. The grip module itself is not a serialized component.