Product Description
| Sig Sauer P320/P250 Grip Module- |
The grip module is the polymer frame of the Sig Sauer P320 or P250 pistol. Unlike most handguns, the serialized part is not the frame, but the internal fire control unit (FCU)—this makes the grip module legally just a part, not a firearm. You can swap grip modules easily to change size, color, grip texture, or ergonomics.
⚙️ Key Specifications
| Feature | Description |
|---|---|
| Material | High-strength polymer |
| Sizes | Full, Carry, Compact, Subcompact |
| Grip Sizes | Small, Medium, Large (affects thickness and palm swell) |
| Caliber Fit | 9mm, .40 S&W, .357 SIG (special versions available for .45 ACP) |
| Weight | ~3–4 oz (standard polymer); ~14–16 oz (TXG tungsten-infused models) |
| Color Options | Black, Coyote (FDE), Gray, OD Green, and others |
| Mounting Features | Picatinny accessory rail (on Carry and Full sizes) |
| Magazine Release | Reversible; some models include installed mag release button |
| Backstrap Texture | Varies; some models include stippling or aggressive texturing |
? Modular Compatibility
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P320 & P250 grip modules are interchangeable with their respective fire control units (as long as size and caliber match).
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The P320 is striker-fired; the P250 is hammer-fired, but their grip modules are physically similar.
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All grip modules must match your slide length and magazine size (e.g., you can’t put a full-size slide on a subcompact grip without issues).
? Notable Variants
| Variant | Description |
|---|---|
| Standard Polymer | Lightweight, everyday carry or duty use |
| TXG Grip Module | Tungsten-infused for competition (heavier, helps control recoil) |
| Wilson Combat Grip | Upgraded texture and ergonomics; custom accessory cuts |
| CustomWorks AXG | Alloy metal frame for better rigidity and weight balance |
? Common Uses
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Swapping for better fit (e.g., small hands → small grip module)
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Changing aesthetics (different colors or aftermarket cuts)
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Upgrading performance (adding heavier TXG module or stippled frame)
