One report I read is the Army is ordering caliber change parts to support 9mm, .40, .45, and interestingly 357Sig. A conflicting report was for 9mm, .40, and 357 Sig since the 45 P320 uses a different grip module for the longer round and magazine.
Could you post a link?
I read somewhere that the P320 will cost us $206 each.
I am not sure about this "modularity" stuff. If it supports easy repair, great. But I have this picture of troops taking their guns further apart than field stripping and wondering how to get them back together.
The P320 is no more "modular" than the M4 or M16. I can't see any reason it'd be any more of a problem with the pistol than it is with the rifles.