I think the manual safety was a game changer for the P320. I'm not really interested in the P320 because I am already heavily invested in GLOCK, Springfield and S&W for my striker fired needs. But if I ever consider a P320, I would definitely want one with a manual safety.Has the military reported any similar problems? I wonder if they'd keep it quiet if they had, being a safety issue. I'm concerned because my son just joined the Army and is going 31B, most likely will be carrying an M17 as a sidearm.
As I mentioned earlier, if there is indeed a problem with the striker safety not actually making enough contact to reliably do its thing in some guns, the manual thumb safety isn't going to help at all. On My P320-M17 with the slide off, the safety lever must travel a little more than 1mm in order to release the striker. I don't see how any amount of bumping or jostling could make it go off without pulling the trigger unless the lever is being pre-loaded when assembled. Perhaps on some guns there is minimal contact and that manufacturing tolerances could be enough to make some guns unsafe. I'd like to see a very detailed mechanical breakdown of the related assemblies and how they interact, on a real gun, not just a schematic.