Anyone know of a retailer who would have Sig 365XL magazines? I called sig and they said they did not have them yet; but expected to get them in the next few months.

15 round P365 magazines are available from various retailers, and work in the P365XL. They come with an alternate shorter grip spacer that you can swap in for use with the XL.

So you might grab some of those for use as range mags and spare mags while you wait, and use the 12 rounder(s) you already have as your primary mag when carrying.

Top Gun has the 12's in stock: https://www.topgunsupply.com/s...m-12rd-magazine.html

Osage has them as well: https://osagecountyguns.com/fi...er-mag-365-9-12.html

My LGS has 12 round mags with both floor plates in the box - regular 365 floorplate is installed, but you can swap it out with the included flat XL floor plate.