Sig Sauer167527484
Sig Sauer 357 Sig P320 Compact Caliber X-Change Kit 10 Rnd$364.38
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Availability: In Stock
Current Stock: Out of stock
The Sig Sauer P320 Compact X-Change Kit in .357 Sig lets you transform your existing P320 Compact into a different caliber platform without buying an entire new pistol. This is the real draw of Sig's modular P320 system: swap the barrel, slide, grip module, and magazine, and you've effectively got a fresh shooter tailored to your ammunition preferences or mission requirements. The .357 Sig is a serious intermediate option—more velocity and energy than 9mm, flatter trajectory than .40 S&W, and a proven performer in both duty and hunting contexts. If you already run a P320 Compact and want to expand your caliber flexibility without the cost and safe-queen clutter of a second gun, this kit is a straightforward way to do it.
Installation is straightforward: field-strip your P320 Compact, install the X-Change components, and reassemble. No gunsmithing required. This modularity is what separates the P320 from single-caliber designs and makes it a practical choice for shooters who reload, hunt multiple game, or simply like having options on the range. The kit ships with a Medium grip frame, which fits the majority of shooters but is worth noting if you're downsizing from a larger P320 or prefer a different ergonomic profile.
One important compatibility note: this X-Change kit does not work with manual safety P320 models—only with the standard P320 Compact platform. If your current gun has a safety lever, you'll need to confirm the receiver is compatible before ordering. Assuming you've got a standard P320 Compact, this .357 Sig kit opens a capable caliber option that balances recoil, ballistics, and ammunition availability in a way many shooters appreciate.
| Product Name | Sig Sauer P320 Compact X-Change Kit .357 Sig - Black |
| Model Number | CALX320C357BSS |
| Brand | Sig Sauer |
| Caliber | .357 Sig |
| Platform | Sig Sauer P320 Compact |
| Grip Frame Size | Medium |
| Finish | Black |
| Includes | Barrel/slide assembly, grip module, magazine |
No. This kit is not compatible with manual safety models of the P320. It is designed for the standard P320 Compact platform without a safety lever.
The kit includes the barrel and slide assembly in .357 Sig, a Medium grip module, and a magazine. You will use these components to convert your existing P320 Compact.
No. Installation involves field-stripping your P320 Compact and reassembling it with the X-Change components. No gunsmithing or specialized tools are required.
All Sig Sauer caliber exchange kits are supplied with Medium grip frames, regardless of the caliber or configuration.
SKU: 115717086 • Width: 12.3in • Height: 2.5in • Depth: 13in • Weight: 2.4oz
Availability: In Stock
Current Stock: Out of stock
The Sig Sauer P320 Compact X-Change Kit in .357 Sig lets you transform your existing P320 Compact into a different caliber platform without buying an entire new pistol. This is the real draw of Sig's modular P320 system: swap the barrel, slide, grip module, and magazine, and you've effectively got a fresh shooter tailored to your ammunition preferences or mission requirements. The .357 Sig is a serious intermediate option—more velocity and energy than 9mm, flatter trajectory than .40 S&W, and a proven performer in both duty and hunting contexts. If you already run a P320 Compact and want to expand your caliber flexibility without the cost and safe-queen clutter of a second gun, this kit is a straightforward way to do it.
Installation is straightforward: field-strip your P320 Compact, install the X-Change components, and reassemble. No gunsmithing required. This modularity is what separates the P320 from single-caliber designs and makes it a practical choice for shooters who reload, hunt multiple game, or simply like having options on the range. The kit ships with a Medium grip frame, which fits the majority of shooters but is worth noting if you're downsizing from a larger P320 or prefer a different ergonomic profile.
One important compatibility note: this X-Change kit does not work with manual safety P320 models—only with the standard P320 Compact platform. If your current gun has a safety lever, you'll need to confirm the receiver is compatible before ordering. Assuming you've got a standard P320 Compact, this .357 Sig kit opens a capable caliber option that balances recoil, ballistics, and ammunition availability in a way many shooters appreciate.
| Product Name | Sig Sauer P320 Compact X-Change Kit .357 Sig - Black |
| Model Number | CALX320C357BSS |
| Brand | Sig Sauer |
| Caliber | .357 Sig |
| Platform | Sig Sauer P320 Compact |
| Grip Frame Size | Medium |
| Finish | Black |
| Includes | Barrel/slide assembly, grip module, magazine |
No. This kit is not compatible with manual safety models of the P320. It is designed for the standard P320 Compact platform without a safety lever.
The kit includes the barrel and slide assembly in .357 Sig, a Medium grip module, and a magazine. You will use these components to convert your existing P320 Compact.
No. Installation involves field-stripping your P320 Compact and reassembling it with the X-Change components. No gunsmithing or specialized tools are required.
All Sig Sauer caliber exchange kits are supplied with Medium grip frames, regardless of the caliber or configuration.
SKU: 115717086 • Width: 12.3in • Height: 2.5in • Depth: 13in • Weight: 2.4oz