You are running a 15rd (compact magazine). The grip module is made for 17rd (full size) magazines. You can change the magazine or get basepad to enable the use of 15rd magazines.
Mirzon offers an X-Compact version that has been trimmed to fit the X-Compact slide.
The manufacturer has a X-compact Cut version that is available in limited colors. It is the same length as the 3.6 version of P320.
Yes, it will work, because the X5 slides have a longer dustcover to hide the recoil spring.
There are two types of 10-round magazines - Full and Compact. With the P320 being modular, it is hard to determine which magazines you have. If you have Full Size mags, then any grip will work because they are made for those magazines. If your magazines are Compact, you would need our basepads to make them fit. Magazines with basepads will work with all the grip modules.
There are two types of 10rd magazines for P320.
One is Full size. These magazines are the same length as 17rd magazines - they fit as is with any factory or aftermarket basepads.
Second type is Compact. They are the same length as 15rd magazines - they can work if outfitted with Mirzon Carry Basepdads.
Sadly, the .45 version has not gained its due popularity. With a small market, it is hard to justify the upfront investment.
Yes, any grip module with a manual safety cut will fit CA compliant versions of P320.
There is a version that Mirzon is offering - X-Compact cut that will fit your slide. However, you would need different magazines (any 17 rd or 15rd with Mirzon Base Pads)
Yes, any Manual Safety Cut version will fit CA P320 versions.