Sig Sauer GRIPMODXC943MBLK P320 Grip Module X-Series Compact (Medium Size Module), 9mm Luger/40 S&W/357 Sig, Black Polymer, Fits Sig P320 (3.60" & 3.90")
$81.88
- Firearm Group:
- Handgun
- Firearm Make Fit:
- Sig Sauer
- Finish-Color:
- Black
- Frame Finish:
- Black
- Frame Material:
- Polymer
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.
Key Features
- Medium-size grip module designed for compact P320 slides (3.60" and 3.90" barrel lengths)
- Accepts P320 and P250 fire control units for modular platform flexibility
- Black polymer construction
- Compatible with 9mm Luger, .40 S&W, and .357 Sig calibers (when paired with appropriate slide and barrel)
- Works with SIG Mark baseplate magazines; not compatible with older "SIG SAUER" text baseplates
- Not designed for full-size P320 platforms
Specifications
| 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 |
Frequently Asked Questions
Will this grip module work with my full-size P320?
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.
What magazines are compatible with this grip module?
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.
Do I need anything else to use this grip module?
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).
Is this the same as a complete P320 Compact pistol?
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.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.
