Sig Sauer 320: Changing Calibers (How to)
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.











