Sig Sauer | P320 X-Five Grip Module | Full Size | 9/40/357

The Sig Sauer P320 X-Five grip module replaces the factory module on Full-Size P320 pistols to provide a taller backstrap, extended beavertail and deeper trigger guard undercut for a higher, more controlled hand hold. It ships with a removable grip weight for improved balance and a removable magazine funnel (flared magwell) to assist with faster reloads. This module is intended for Full-Size P320 slides in 9mm, .40 S&W and .357 Sig and is finished in black polymer.

Applications: competitive pistol events where faster reloads and a higher grip aid follow-through, and precision/range shooting where improved ergonomics support consistent trigger control and recoil management.

Product Specifications

• The manufacturer is Sig Sauer.
• The model designation is P320 X-Five Grip Module.
• The compatible calibers are 9mm Luger / .40 S&W / .357 Sig.
• The module is designed to fit Full-Size P320 slides.
• The grip size is Medium.
• The finish/color is Black.
• The frame material is listed as Black Polymer.
• Included features are a removable grip weight and removable magazine funnel: Grip Weight / Funnel.
• The module converts a standard Full-Size P320 to the 320-X5 Full Size configuration.
• The grip includes a flared magwell to assist faster reloading.
• Compatibility note: Requires newer P320 magazines with the circular SIG logo; Gen 1 magazines require modification.
• With the magwell installed, only new-style 21rd magazines will fit without modification.
• Package dimensions are Length 11.5, Width 11.0, Height 3.0.
• The product weight is 1.1.
• UPC: 798681583546.

This grip module provides a clear ergonomic upgrade path for Full-Size P320 owners seeking improved control and faster reloads. The combination of a higher grip profile, extended beavertail and flared magwell enhances handling and balance without altering slide or barrel components. For shooters focused on competition or precision work, the X-Five grip module offers tangible, mechanical improvements that support consistent performance on the range.