I recently purchased my first 320. Somewhat confused by what it was I had to research a bunch! The box calls it an X Carry. It appears to be a compact though. It came with 15rd magazines and it looks like the slide is 3.6”.

I love classic Sigs and when I found out they have the alloy frame, known as the AXG, I HAD to have it!! I’m seeing that first off it requires 17rd+ mags, but also looks like the forward portion known I guess as the “dust cover” where the picatinny rail is, requires the 3.9” slide such as the M18, can anyone confirm that? Kinda bummed if that’s the case.

A P320 Carry is generally a compact 3.9” barrel/slide on a frame full sized frame that is shortened to match the slide length. As a carry grip is a full sized grip, it only takes 17 and up round mags. 15 rd compact mags won’t fit.