The M17 is not the same P320 the DPD bought. It has a manual safety added so things are put together a little bit differently but I am not sure exactly what changes were made to add the safety. From the little I gave read, it seems to be an issue with the weight of the actual trigger. This may or may not be an issue with the M17. For what it is worth, SIG has issued a statement addressing this.
http://firelancemedia.com/sig-releases-statement-p320-safety-issues/
This is a piece from a place that reproduced the problem.
https://bluelivesmatter.blue/sig-p320-drop-test-fire/
My bone of contention is that the US Army has for coming up on 15 years been seeking a sidearm replacement for the Beretta over the course of two hugely expensive programs for everyone involved, and they apparently ended up selecting a pistol they thought was bitchinest but discharges when dropped in a way they explicitly never tested. Oh what the hell, huh? There have only been two sidearm adoptions for the US military in 100 years and this is what happens after spending 15 years on these projects?
The first survey program called ‘Joint Combat Pistol’ produced several manufacturers’ pistols that have since proven hugely popular to law enforcement and civilians alike. I own one of them that was adopted by the US Navy as the Mk24 Mod 0. The second program reduced the number of projected purchases from well over a half million to only 65,000 units and it brought in all kinds of wacky designs from second and third rate manufacturers. Heckler and Koch saw the low unit sales and told the US Army to go spoon a goose after blowing zillions the first time around. Glock just submitted their Model 17 and told the Army to go get sample models their damn selves at the sporting goods store and call us if you need us. It was SIG who sold the Army on the neato features they needed to have and won the competition over CZ and Taurus and a ho-hum model from S&W.
So now we have a new 9mm pistol to replace the old 9mm pistol. But you can change the frame size on it so Bradley Manning can get a grip on it.
I am no SIG Sauer hater at all, but I’ve not been a big fan of recent SIG handguns for other reasons long before the SIG 320 was revealed. I do think one of its features will be adopted as standard by other manufacturers (the modular fire control assembly) and when they do they’ll end up being better than SIG’s design. I personally just think this drop failure will be the first of several serious issues because I’m dubious that SIG Sauer can keep up quality control in a sustained a military-sized production run. The old SIG Sauer company just ain’t the new SIG Sauer. Just my opinion. And the old proven Sig P22x guns would have never won any of the competitions. Crazy.
Just my opinion but I have to wonder if this adoption of the P320 will be as short-lived as the Navy Lee rifle or the 1898 Krag-Jorgensen.