Description
Wilson Combat engineered this grip module from the ground up to fix what shooters found lacking in the stock P320 frame. The redesigned shape and texture work together to give you a gun that feels smaller and more nimble without sacrificing grip area or comfort.
The module uses an aggressive Starburst pattern on the sides paired with stippled texturing across the front and backstrap. This combination gives you the grip traction you need whether you're running drills or carrying daily. The overall profile is slimmer than the factory module, which makes a noticeable difference if you have smaller or medium hands. The high-cut 1911-style beavertail, undercut frontstrap, and reshaped trigger guard all work together to let you get higher up on the grip and improve your natural pointing angle.
Wilson Combat Full-Size Grip Module Design Details
The module comes with an enlarged, integrated magwell that's compatible with newer generation SIG Sauer X-series factory basepads for faster reloads. Internal slots let you add rod-style tungsten weights if you want more heft. The light rail features angled holster cuts to minimize snagging during re-holstering. This is a drop-in replacement with no modifications needed for the trigger assembly or magazine well.
P320 Grip Module Recoil and Handling Characteristics
The improved backstrap shape and overall ergonomics reduce felt recoil and give you better control during strings of fire. The module works with 9mm, .40 S&W, and .357 SIG calibers and is designed for full-size P320 slides. It doesn't have a cut for a manual safety.
Key Specifications
- UPC: 810129400182
- Manufacturer Part Number: 320-FSGN
- Manufacturer: Wilson Combat
- Grip Size: Full-Size
- Calibers Compatible: 9mm, .40 S&W, .357 SIG
- Color: Green
- Material: Molded Polymer
- Manual Safety Cut: No
- Weight: 3.2 oz
- Grip Pattern: Starburst sides with aggressive frontstrap and backstrap texturing
- Magwell: Enlarged integrated opening for fast reloads
- Internal Slots: Compatible with rod-style tungsten weights (NW734)
- Light Rail Cuts: Angled holster cuts for snag-free re-holstering
What’s Included
- 1 Wilson Combat P320 Full-Size Grip Module in green
- OEM SIG Sauer magazine release, spring, and lock (may not be pre-installed)
Frequently Asked Questions
Will this grip module fit my P320 slide and trigger assembly?
Yes, the Wilson Combat grip module is designed as a direct replacement for the factory module on any full-size P320 fire control unit. It accepts standard P320 slides and requires no modifications to the trigger assembly or magazine well. The module is compatible with full-size slides and works with newer generation SIG Sauer X-series factory basepads.
Is this the same grip module used on Wilson Combat's WCP320 pistols?
This is the same core design used on Wilson Combat's complete WCP320 builds, though those pistols also feature upgraded slides and triggers. You're getting the same ergonomic improvements and texturing that professional builds receive, just the grip module on its own for retrofit into your existing P320.
Can I add weights to this module to reduce recoil?
Yes, the module has internal slots designed for rod-style tungsten weights. These allow you to increase the mass of the grip module for a more stable platform with reduced perceived recoil. Wilson Combat makes a tungsten weight kit (NW734) that fits into these slots.
What calibers does this grip module support?
The full-size module works with 9mm, .40 S&W, and .357 SIG. It is not compatible with .45 ACP P320 platforms, which use a different module. Make sure your fire control unit matches one of these calibers before ordering.





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