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

The Sig Sauer P320 X-Series Grip Module is a medium-size replacement frame for the Full Size Sig P320 modular pistol platform. Molded from durable black polymer, this grip module is designed to accept a P320 fire control unit and accepts build configurations chambered in 9mm Luger, .40 S&W, and .357 Sig.

The grip module is the serialized component of the P320 system and forms the frame of the firearm, serving as the mounting point for the slide assembly, barrel, and magazine. This Medium X-Series module is intended for use with a Full Size P320 slide measuring 4.70 inches, providing a full-length grip and slide combination once assembled.

The X-Series grip module uses the updated X-Series grip geometry found on Sig Sauer's X-Series pistol line. This module does not include the extended magwell or internal weight, and is sold as the grip frame only. The fire control unit, slide, barrel, and magazine are not included and must be sourced separately to complete a functional pistol.

Whether you are replacing a worn or damaged factory grip module or reconfiguring an existing P320 fire control unit into a different size or caliber configuration, this Sig Sauer X-Series Medium grip module delivers factory-original fit, finish, and serialized frame compatibility for the Full Size P320 platform.

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