Sig Sauer 357 Sig P320 Compact Caliber X-Change Kit 10 Rnd

The Sig Sauer 357 Sig P320 Compact Caliber X-Change Kit gives you the flexibility to run your P320 Compact in a different caliber without buying a second gun. This kit is built around Sig's modular X-Change platform, letting you swap calibers and keep the same frame and fire control group. If you're a shooter who wants to train in 357 Sig or needs a dedicated round for a specific range or hunting application, this kit lets you do it efficiently.

The 10-round magazine capacity strikes a balance between practical carry and firepower for compact shooters. Whether you're at the range working on precision drills, training for defensive scenarios, or building out a versatile duty gun, having a dedicated 357 Sig upper and magazine pairing keeps everything reliable and properly matched. Sig P320 owners appreciate the X-Change system because it eliminates guesswork—you know your round count, your setup is manufacturer-tested, and you're running components designed to work together.

This is raw modular capability for shooters who take their gear seriously and want options without compromise.

Key Features

• Designed for Sig Sauer P320 Compact platform
• 10-round capacity for 357 Sig ammunition
• Engineered as part of Sig's X-Change modular system
• Allows caliber conversion while retaining your existing frame

Specifications

Frequently Asked Questions

Will this kit work with my standard P320 or P320 Full-Size?

No, this kit is specifically designed for the P320 Compact. The X-Change system is caliber and size-specific, so verify your slide and frame match before ordering.

What's included in the X-Change Kit?

Based on the product name and Sig's X-Change system, this kit includes the caliber-specific components needed to convert your P320 Compact to 357 Sig, along with the 10-round magazine. For a complete parts list, contact us directly.

Can I use standard P320 Compact magazines with this kit?

This kit comes with a 10-round magazine sized and engineered for 357 Sig in the P320 Compact. For questions about cross-compatibility with other magazines, we recommend confirming with Sig or our team before mixing components.