I want to use the 12 round magazine that came with the P365X/XL on the standard P365 frame/grip module. Which basepad do I need?

If you want to use any Sig 12 round magazine with a Sig P365 frame/grip module. The12 Round Sleeve for Sig P365, is the basepad you want. It comes in either a straight, or pinky version. Please select the desired version by clicking the drop down under the word 'Profile' on the product page.
link below:
12 Round Sleeve for P365