
Availability: In Stock
The Sig Sauer P320 Grip Module X-Series Compact gives you the modular versatility the P320 platform is known for—swap your existing firing control unit into this medium-size polymer grip to convert your setup to a compact 9mm Luger, .40 S&W, or .357 Sig pistol. Built for the compact slide lengths (3.60" and 3.90"), this grip module lets you rebuild or reconfigure your P320 without buying an entirely new gun. It's the core idea behind Sig's serialized FCU design: buy the frame once, change calibers and profiles as your needs shift.
The X-Series Grip Module features a black polymer construction designed for the compact and sub-compact slide profiles. This module is not compatible with full-size P320 slides—attempting to use it with a full-size platform will leave the dust cover exposed and your recoil spring and guide rod uncovered. Make sure your slide length matches before ordering. One important note for magazine compatibility: the X-Series grip modules work with magazines that bear the SIG Mark on the baseplate, not the older "SIG SAUER" text-based baseplates.
If you're running a P250 or already own a P320 fire control unit, this grip module is your entry point to compact-frame shooting without the expense of a complete pistol purchase. Whether you're building a truck gun, a carry backup, or just want to experiment with a shorter sight radius for close-quarters work, the modular P320 ecosystem makes it possible. Pair it with a compact 9mm or .40 slide and barrel assembly to complete your build.
| Brand | Sig Sauer |
| Model | GRIPMODXC943MBLK |
| Grip Size | Medium |
| Caliber Compatibility | 9mm Luger, .40 S&W, .357 Sig |
| Slide Length Compatibility | 3.60" and 3.90" (compact) |
| Material | Black Polymer |
| Platform | Sig P320 / P250 |
No. The X-Series Compact Grip Module is designed only for compact and sub-compact slides (3.60" and 3.90" barrels). Using it with a full-size P320 slide will not cover the full-size dust cover, leaving the recoil spring and guide rod exposed. You'll need the appropriate full-size grip module for full-size platforms.
The X-Series Grip Module works with magazines that have the SIG Mark on the baseplate. It is not compatible with older magazines that have "SIG SAUER" printed on the baseplate.
Yes. This is a grip module only. To create a functional compact P320, you'll need a fire control unit (from an existing P320 or P250), a compact slide, and a barrel in your chosen caliber (9mm Luger, .40 S&W, or .357 Sig).
No. This is the grip module component only. It allows you to convert an existing P320 or P250 fire control unit into a compact platform by swapping the grip. It's part of Sig's modular design system.

SKU: 194195758 • Width: 6in • Height: 1.9in • Depth: 10.9in • Weight: 0.4oz
Availability: In Stock
The Sig Sauer P320 Grip Module X-Series Compact gives you the modular versatility the P320 platform is known for—swap your existing firing control unit into this medium-size polymer grip to convert your setup to a compact 9mm Luger, .40 S&W, or .357 Sig pistol. Built for the compact slide lengths (3.60" and 3.90"), this grip module lets you rebuild or reconfigure your P320 without buying an entirely new gun. It's the core idea behind Sig's serialized FCU design: buy the frame once, change calibers and profiles as your needs shift.
The X-Series Grip Module features a black polymer construction designed for the compact and sub-compact slide profiles. This module is not compatible with full-size P320 slides—attempting to use it with a full-size platform will leave the dust cover exposed and your recoil spring and guide rod uncovered. Make sure your slide length matches before ordering. One important note for magazine compatibility: the X-Series grip modules work with magazines that bear the SIG Mark on the baseplate, not the older "SIG SAUER" text-based baseplates.
If you're running a P250 or already own a P320 fire control unit, this grip module is your entry point to compact-frame shooting without the expense of a complete pistol purchase. Whether you're building a truck gun, a carry backup, or just want to experiment with a shorter sight radius for close-quarters work, the modular P320 ecosystem makes it possible. Pair it with a compact 9mm or .40 slide and barrel assembly to complete your build.
| Brand | Sig Sauer |
| Model | GRIPMODXC943MBLK |
| Grip Size | Medium |
| Caliber Compatibility | 9mm Luger, .40 S&W, .357 Sig |
| Slide Length Compatibility | 3.60" and 3.90" (compact) |
| Material | Black Polymer |
| Platform | Sig P320 / P250 |
No. The X-Series Compact Grip Module is designed only for compact and sub-compact slides (3.60" and 3.90" barrels). Using it with a full-size P320 slide will not cover the full-size dust cover, leaving the recoil spring and guide rod exposed. You'll need the appropriate full-size grip module for full-size platforms.
The X-Series Grip Module works with magazines that have the SIG Mark on the baseplate. It is not compatible with older magazines that have "SIG SAUER" printed on the baseplate.
Yes. This is a grip module only. To create a functional compact P320, you'll need a fire control unit (from an existing P320 or P250), a compact slide, and a barrel in your chosen caliber (9mm Luger, .40 S&W, or .357 Sig).
No. This is the grip module component only. It allows you to convert an existing P320 or P250 fire control unit into a compact platform by swapping the grip. It's part of Sig's modular design system.
SKU: 194195758 • Width: 6in • Height: 1.9in • Depth: 10.9in • Weight: 0.4oz
