Description
This is a genuine Sig Sauer factory grip module built for the P320 compact platform with an integrated manual safety button pre-installed. It's designed to work with fire control units chambered in 9mm, .40 S&W, or .357 SIG. The module comes finished in black polymer and sized for a medium grip.
The real appeal of the P320 system is modularity. Unlike most other pistols where the frame is the serialized part, the P320's fire control unit is what gets registered. That means you can swap this grip module onto your existing P320 trigger group without any paperwork or special tools. The whole process takes about 30 seconds and requires nothing more than removing your slide and takedown lever. Drop your FCU into this new module, reassemble, and you've got a different feel and handling characteristics without buying a whole new gun.
What Makes This Compact Module Different
The compact size sits between a full-size and subcompact, giving you a more concealable package while keeping decent hand purchase. The manual safety notch is already machined in, which matters because not all standard grip modules have the proper cut for a safety lever. If you've got an MS-equipped fire control unit, this module is what you need.
Building or Converting Your P320
Whether you're building a second P320 configuration or converting an existing gun, this module gives you factory fitment and reliability. Sig Sauer manufactures these to the same standards as OEM components, so there's no guesswork about compatibility or durability.
Key Specifications
- Manufacturer: Sig Sauer
- Manufacturer Part Number: 8901479
- UPC: 798681683970
- Model: P320 Compact with Manual Safety
- Size: Medium
- Color: Black
- Material: Polymer
- Caliber Compatibility: 9mm, .40 S&W, .357 SIG
- Safety Type: Manual Safety (integrated)
- Compatible Platforms: P320, M17, M18 with manual safety FCU
What’s Included
- Sig Sauer P320 Compact grip module assembly with manual safety
Frequently Asked Questions
Does this P320 compact module work with my existing fire control unit?
Yes, as long as your FCU is set up for manual safety and chambered in 9mm, .40 S&W, or .357 SIG. The P320's design lets you drop any compatible FCU into any grip module that matches its safety configuration. Non-manual safety trigger groups won't work with this module since it has the safety notch machined in.
Can I use this grip with an M17 or M18?
Yes, this module is compatible with M17 and M18 pistols that have manual safety fire control units. The M17 and M18 are military variants of the P320, and grip modules are freely swappable between them as long as the FCU's safety configuration matches.
How difficult is it to swap this grip module onto my P320?
It's one of the easiest modifications you can do. Unload your pistol, remove the slide, take out your takedown lever, and lift out the fire control unit. Drop it into this new grip module and reassemble. The whole swap takes about 30 seconds with no tools and no gunsmith required.
What's the difference between this compact module and other P320 grip sizes?
The compact size offers better concealability than a full-size module while still providing more hand room than a subcompact. Since grip feel and control are personal preferences, many people buy multiple modules to match different purposes, from carry setups to range guns. The P320's modularity makes that kind of customization simple and affordable.





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