The Sig Sauer P320 Compact Grip Module, Large, 9mm/.40, Black (Sig Sauer part number GRIP-MOD-C-943-LG-BLK) lets P320 owners change the look and feel of their pistol without buying a whole new gun. Sig Sauer’s modular P320 system means the shooter simply drops the Fire Control Unit into this grip module and installs the matching slide assembly to complete the swap. P320 grip modules come in three girth sizes, small, medium, and large, and are matched to specific slide lengths; this is the large-girth Compact grip module. It fits P320 models chambered in 9mm, .357 Sig, and .40 S&W, giving one grip module broad caliber compatibility across the platform.

Key Specifications

• Classified as a Grip Module, the serialized-frame-equivalent component of the modular P320 system.
• Built in the large girth size, one of three sizes Sig Sauer offers for the P320.
• Sized for the Compact slide length, distinct from Sig’s Full Size grip modules.
• Compatible with 9mm, .357 Sig, and .40 S&W P320 models.
• Accepts a drop-in Fire Control Unit (FCU), the same swap used to build any P320 configuration.

Frequently Asked Questions

Which calibers fit this grip module? It is compatible with P320 models chambered in 9mm, .357 Sig, and .40 S&W.

How do I install it? Drop your existing P320 Fire Control Unit into this grip module and install the matching Compact slide assembly.

Buy the Sig Sauer P320 Compact Grip Module, Large

Change the size and feel of your P320 with this factory large-girth Compact grip module. Order it from our Sig Sauer lineup of handgun frames and our Lubbock, Texas team will get it shipped out quickly.