Sig Sauer GRIPMODXC943MCOY P320 Grip Module X-Series Compact (Medium Size Module), 9mm Luger/40 S&W/357 Sig, Coyote Polymer, Fits Sig P320 (3.60" & 3.90")Sig Sauer$79.41
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Sig Sauer
The Sig Sauer P320 Grip Module X-Series Compact is the foundation for building or converting a P320 pistol that fits your hand and your mission. If you've got a P320 or P250 firing control unit (FCU) and want a compact platform chambered in 9mm Luger, .40 S&W, or .357 Sig, this small-frame grip module is your starting point. It's the modularity advantage that makes the P320 system so versatile—swap the frame, change your firearm's personality and ergonomics without replacing the core component.
Built from durable coyote polymer, this X-Series module is designed specifically for compact and sub-compact slides with 3.60" and 3.90" barrels. The aggressive texturing and modern grip geometry give you a secure purchase whether you're running it as a duty alternative, a range gun, or a carry option. The coyote finish blends tactical durability with a professional look that works in any environment.
Keep one thing in mind during assembly: X-Series grip modules require magazines with the SIG Mark baseplate—older magazines stamped with "SIG SAUER" won't play nicely with this frame. Also, this module is purpose-built for compact and sub-compact slides; it's not compatible with full-size P320 slides, which would leave the dust cover unsupported and expose the recoil spring and guide rod. Know your slide length before you order, and you'll have a seamless conversion.
Whether you're a tinkerer who loves the P320's modular design or a shooter looking to downsize without replacing your entire gun, this grip module delivers the foundation for a custom-fit compact that handles how you shoot.
| Brand | Sig Sauer |
| Model | P320 Grip Module X-Series Compact |
| Frame Size | Small |
| Material | Polymer |
| Color | Coyote |
| Compatible Slide Lengths | 3.60", 3.90" |
| Compatible Calibers | 9mm Luger, .40 S&W, .357 Sig |
| Compatibility | P320 and P250 firing control units |
No. The X-Series Compact module is engineered for compact and sub-compact slides with 3.60" and 3.90" barrels only. Using it with a full-size slide will leave the dust cover unsupported and expose the recoil spring and guide rod, which is not a safe or functional setup.
X-Series grip modules require magazines with the SIG Mark baseplate. Older magazines labeled with "SIG SAUER" on the baseplate are not compatible and will not function properly with this frame.
This module supports 9mm Luger, .40 S&W, and .357 Sig. You'll need a compatible slide and barrel in your chosen caliber to complete the build.
Yes. This grip module houses your existing P320 or P250 firing control unit. It does not come as a complete pistol—you'll need an FCU, a compatible compact slide, and a barrel in your desired caliber to assemble a functional P320.
Sig Sauer
The Sig Sauer P320 Grip Module X-Series Compact is the foundation for building or converting a P320 pistol that fits your hand and your mission. If you've got a P320 or P250 firing control unit (FCU) and want a compact platform chambered in 9mm Luger, .40 S&W, or .357 Sig, this small-frame grip module is your starting point. It's the modularity advantage that makes the P320 system so versatile—swap the frame, change your firearm's personality and ergonomics without replacing the core component.
Built from durable coyote polymer, this X-Series module is designed specifically for compact and sub-compact slides with 3.60" and 3.90" barrels. The aggressive texturing and modern grip geometry give you a secure purchase whether you're running it as a duty alternative, a range gun, or a carry option. The coyote finish blends tactical durability with a professional look that works in any environment.
Keep one thing in mind during assembly: X-Series grip modules require magazines with the SIG Mark baseplate—older magazines stamped with "SIG SAUER" won't play nicely with this frame. Also, this module is purpose-built for compact and sub-compact slides; it's not compatible with full-size P320 slides, which would leave the dust cover unsupported and expose the recoil spring and guide rod. Know your slide length before you order, and you'll have a seamless conversion.
Whether you're a tinkerer who loves the P320's modular design or a shooter looking to downsize without replacing your entire gun, this grip module delivers the foundation for a custom-fit compact that handles how you shoot.
| Brand | Sig Sauer |
| Model | P320 Grip Module X-Series Compact |
| Frame Size | Small |
| Material | Polymer |
| Color | Coyote |
| Compatible Slide Lengths | 3.60", 3.90" |
| Compatible Calibers | 9mm Luger, .40 S&W, .357 Sig |
| Compatibility | P320 and P250 firing control units |
No. The X-Series Compact module is engineered for compact and sub-compact slides with 3.60" and 3.90" barrels only. Using it with a full-size slide will leave the dust cover unsupported and expose the recoil spring and guide rod, which is not a safe or functional setup.
X-Series grip modules require magazines with the SIG Mark baseplate. Older magazines labeled with "SIG SAUER" on the baseplate are not compatible and will not function properly with this frame.
This module supports 9mm Luger, .40 S&W, and .357 Sig. You'll need a compatible slide and barrel in your chosen caliber to complete the build.
Yes. This grip module houses your existing P320 or P250 firing control unit. It does not come as a complete pistol—you'll need an FCU, a compatible compact slide, and a barrel in your desired caliber to assemble a functional P320.