Sig Sauer 320: Changing Calibers (How to)

Published on April 20, 2018
Duration: 2:03

This guide details how to change the caliber and/or model configuration of a Sig Sauer P320 using an X-Change Kit. The process involves safely disassembling the firearm to remove the Fire Control Unit (FCU), which is then transferred to a new grip module and paired with a new slide assembly. The video emphasizes that the FCU is the serialized part of the firearm, making it the core component for caliber and configuration changes. An expert from Sig Sauer demonstrates the steps, highlighting the ease and speed of the modification.

Quick Summary

Changing the caliber on a Sig Sauer P320 involves using an X-Change Kit. Ensure the pistol is unloaded, then disassemble it to remove the Fire Control Unit (FCU). Transfer the FCU to the new grip module from the kit, reinsert the takedown lever, and attach the new slide assembly. The FCU is the serialized part, making this a legal caliber conversion.

Chapters

  1. 00:00Introduction to Sig P320 caliber change
  2. 00:07Safety and initial disassembly
  3. 00:17P320 disassembly steps
  4. 00:37Understanding the X-Change Kit purpose
  5. 00:49Unboxing the Caliber Exchange Kit
  6. 00:57Kit contents: manual and slide catch lever
  7. 01:12Installing new grip module and FCU
  8. 01:23Reinstalling the takedown lever
  9. 01:34Installing the new slide and final assembly
  10. 01:47Conclusion and availability

Frequently Asked Questions

How do you change the caliber on a Sig Sauer P320?

To change the caliber on a Sig Sauer P320, you'll use an X-Change Kit. First, ensure the pistol is unloaded. Disassemble the firearm by removing the takedown lever and then the Fire Control Unit (FCU). Transfer the FCU to the new grip module from the X-Change Kit, reinstall the takedown lever, and attach the new slide assembly.

What is the serialized part of a Sig Sauer P320?

The serialized part of a Sig Sauer P320 is the Fire Control Unit (FCU). This component contains the trigger mechanism and is legally considered the firearm. All other parts, such as the slide, barrel, and grip module, can be swapped out using X-Change Kits without requiring new registration, as long as the FCU remains the same.

What does a Sig Sauer P320 X-Change Kit include?

A Sig Sauer P320 X-Change Kit typically includes a new slide assembly with a barrel, a magazine, and a grip module in a different caliber or size. Some kits may also include updated components like a specific slide catch lever (e.g., KIT-320-SCL) for compatibility with newer grip modules.

Can you change the caliber of a Sig Sauer P320 without a new background check?

Yes, you can change the caliber of a Sig Sauer P320 without a new background check because the Fire Control Unit (FCU) is the serialized part. As long as you are swapping components around the same FCU, you are not acquiring a new firearm. This modularity is a key feature of the P320 platform.

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