Sig Sauer GRIPMODXF943SMCOY P320 Grip Module X-Series (Small Size Module), 9mm Luger/40 S&W/357 Sig, Coyote Polymer, Fits Full Size Sig P320 (4.70")

The SIG SAUER GRIPMODXF943SMCOY P320 Grip Module X-Series is a small-frame replacement grip assembly engineered for full-size SIG P320 pistols chambered in 9mm Luger, .40 S&W, or .357 Sig. This modular grip module allows shooters to downsize their P320 platform without replacing the fire control group or slide, making it an efficient upgrade path for users seeking improved ergonomics or reduced hand fatigue during extended range sessions and duty rotations. The coyote polymer construction provides a lightweight, corrosion-resistant frame while maintaining the structural integrity required for modern service pistol applications.

Built to SIG's X-Series design standards, this small module is compatible with full-size P320 slides (4.70" barrel length). The grip module does not include the extended magwell or internal weight—a design choice that reduces overall width for those prioritizing frame compactness. Critical compatibility note: this module requires magazines with the SIG Mark baseplate; it will not properly function with magazines bearing "SIG SAUER" text on the baseplate, a distinction that affects magazine sourcing. The modular architecture allows users to swap grip modules on the same serialized fire control group, a key advantage of the P320 platform for agencies and operators managing multiple duty configurations from a single lower receiver.

This upgrade serves duty officers, competitive shooters, and civilian carriers who operate full-size P320 platforms but require a smaller, more manageable grip circumference without sacrificing sight radius or ballistic performance. The coyote finish integrates seamlessly into tactical load-outs alongside modern optics mounts and accessory rail systems. Operators managing multiple pistol variants or transitioning between compact and full-size configurations benefit from the modular flexibility SIG's grip-swap design provides, eliminating the need for multiple complete firearms to achieve different ergonomic profiles.